Pause, Freeze, Reload while streaming ISO files

[cchasecfi]

Hello.

I have installed Mezzmo v5.2.0.0 on our Windows 7 64bit Dell XPS 730x. I have 530+ iso files stored on a NAS connected to our home 10/100 Mbps network. I stream to our TV via ROKU Ultimate connected to the wifi network via 11AC.

I am periodically seeing a video play OK for several minutes, then it "Reloading" starts playing from about 40 seconds earlier, plays the 40 seconds and repeats this process. I pause the play back, press the back page button, and resume the video. It resumes at the same point and plays for 40 seconds and then repeats the "Reloading" process. If I fast foreword to another part of the video, it plays for another 40 secs and repeats the problem.

Most of the time, Mezzmo plays the videos OK, but on occasion, we run into this problem.

Any ideas?

[Peter]

This may be a problem with the bandwidth of the wireless network when streaming to the Roku or it is a problem with transcoding speed of the Mezzmo server. You can try pre-transcoding an ISO file in Mezzmo then stream it to the Roku and if it plays without issue then the problem is the transcoding speed, if it still has a problem then it is bandwidth and you may need to run a wired cable to the Roku to stream the content or change the Performance settings in Device Settings to lower the bitrate or resolution when transcoding.

[cchasecfi]

This may be a problem with the bandwidth of the wireless network when streaming to the Roku or it is a problem with transcoding speed of the Mezzmo server. You can try pre-transcoding an ISO file in Mezzmo then stream it to the Roku and if it plays without issue then the problem is the transcoding speed, if it still has a problem then it is bandwidth and you may need to run a wired cable to the Roku to stream the content or change the Performance settings in Device Settings to lower the bitrate or resolution when transcoding.

The Roku box connects to the wifi network via an 11AC connection to a Netgear WAC104 access point. The access point is wired to the network. The 11AC connection is capable of up to 867 Mbps. The network is wired at 10/100 Mbps. The wifi connection is faster than the wired network. I am going to upgrade the wired network to a Gigibit system. So you are saying that the problem appears to be bandwidth either wifi or wired. Hopefully then, the upgrade to the gigabit network should clear this up. I'll let you know.

[Peter]

The problem could be network bandwidth or transcoding speed, you should check to see if pre-transcoding a file resolves the issue then you will not need to upgrade the network. Also the wifi network may be AC but does the Roku device support AC? The wifi signal may be reduced to a compatibility mode to connect to the older wifi in the device, it could also be an issue with signal interruption if the wifi is dropping out.

[cchasecfi]

The Roku Ultimate box connected to the 11AC wifi access point OK. During setup, it listed the 3 ssid's on our home network and selected the 11AC as default. I upgraded the network to a 1 Gigibit system by swapping the Zonet zfs3018p 10/100 Mbps switch to a Dlink dgs-1008g 1Gbit switch.
Before the upgrade I noted the following:
I ran a disk speed test utility from BlackMagic Design on the same computer were the Mezzmo Media Server is installed. The Dlink DNS345 NAS drive tested at: Disk write speed 10 MBps, (80 Mbps), Disk read speed 2 MBps, (16 Mbps). This would appear to be the streaming problem.

After the upgrade the Dlink DNS345 speeds did not change, 10MBps write, and 2 MBps read speed. I noted that another smaller NAS connected in a different location tested at 20MBps write speed and 20MBps, (160Mbps) read speed, (this is faster than the 10/100 Mbps switch capacity). I relocated the Dlink DNS345 to another location in the network. It then tested at 65 MBps, (520 Mbps), 65 MBps read speed. This appeared to be the solution to the problem.

I have found that the Pause, Freeze, Reload problem still exists as before. I am playing a Blu-Ray ISO file. It takes about 30 secs to load. It plays OK for 30 secs and goes black for several seconds. The metadata screen is displayed. When "Resume" is selected, it starts at the beginning and plays for about 5 min then goes black and returns to the metadata screen. When "Resume" is again selected, it starts at the beginning and plays for about 8 min and goes black and returns to the metadata screen. This repeats 3 or 4 times.

During this activity, the Mezzmo Server displays
Steaming file: 'xxxfilm' to Device: Roku Streaming Player (192.168.1.91) on the Status Panel.

The Transcoding Panel displays, File: 'xxxfilm', Device: Roku Streaming Player, Format: hls(+h264,+aac,+burn.en) Status: Queued.

While it is streaming OK, THE cpu shows 2%, the Networking shows less than 5%.

While it is paused, Loading, the Transcoding Panel shows, Server Transcoding 4.6% at 16fps. After the "Resume" is selected the streaming starts again and the transcoding status clears. Then after several more minutes the Transcoding Panel status changes to 'Server Transcoding: 4.1% at 17 fps'. The fps changes from 17, 18, and 20. The CPU then increases to 22%, Mediaserver, 12%, ffmpeg.exe 10%. Then the screen goes black, the metadata screen is shown. When "Resume" is selected, it starts the film at the beginning.

I also tried to connect an ethernet cable to the Roku box and connect to the access point via a wired connection. Same problem.

[Peter]

The problem appears to be the transcoding speed, 17 fps is not fast enough to play the file while transcoding on the fly. Please try pre-transcoding http://www.mezzmo.com/wiki/doku.php?id=pre-transcoding_files&s[]=pre&s[]=transcoding the file and this should resolve the issue. You can also investigate ways to speed up transcoding by looking into the Performance Settings http://www.mezzmo.com/wiki/doku.php?id=reduce_video_stuttering&s[]=performance&s[]=settings#transcoding_performance or Hardware transcoding http://www.mezzmo.com/wiki/doku.php?id=hardware_transcoding&s[]=hardware

[cchasecfi]

Hi Peter. Thanks for your replies. I have researched the links you supplied and modified some performance parameters in the device settings for the Roku boxes, (we have 3 boxes installed). I changed the maxbit rate to 1 Gbps and added Direct3D to hardware acceleration. Still have the problems. The pre-trancoding works. Forget about about trying to transcode Blu-Ray ISO files on the fly. I'm sure the problem here is the ISO file size. Blu-Ray ISO files average 30+GB compared to a DVD ISO file average of around 6GB. They both have to stream to the TV in a 2 hr time frame, so roughly 5 times more data must be streamed in Blu-Ray. The Blu-Ray ISO files that I have pre-transcoded play perfectly.

Our video library consists of 550 BD and DVD ISO files at the moment and growing. The current space requirement for the library is 4TB on the NAS drive. I have some questions about pre-transcoding:
1) Where are the pre-transcoded files stored?
2) What are the sizes of the transcoded files compared to the original ISO files?
3) Can the transcoded file libray location be controlled?
4) Can it be located on the same NAS as the ISO files?

I'm afraid if the transcoded files are stored in the Mezzmo library: c:\users\CChase\AppData\Local\Concieva\Mezzmo, the C: drive is a 2TB system boot drive. It only has about 1.5TB of available space. It wouldn't appear to be a good location for the transcoded files.

I would certainly appreciate any advice you could share.

[Peter]

1) Transcoded files are stored in the temporary transcoding folder which is by default in the same folder as the Mezzmo database, you can find this location in Transcoding Settings in Mezzmo
2) The sizes of the transcoded files can vary depending upon the transcoding format, mpeg files are generally larger than h264 files
3) You can change the location of the transcoding folder in Transcoding Settings
4) it is best to keep the location on the same computer as Mezzmo server. Putting the location on a NAS drive can make transcoding slower and introduce problems if network problems occur while transcoding.

Since pre-transcoding is going to require you to convert all of the BD/DVDs I would recommend using Handbrake to convert the BD/DVD iso files to mp4 for streaming so that you have all your files ready to go. You could keep an mp4 copy in addition to the original ISO if you want, possibly have the mp4 in the same folder as the ISO with the same name and different extension, the mp4 should be much smaller than the ISO. You can pre-transcode and then save the pre-transcoded file to the NAS in Mezzmo and then delete the pre-transcoded file but it would be much easier to have Handbrake scan the folder of ISO files and convert them.

[smitbret]

Hello.

I have installed Mezzmo v5.2.0.0 on our Windows 7 64bit Dell XPS 730x. I have 530+ iso files stored on a NAS connected to our home 10/100 Mbps network. I stream to our TV via ROKU Ultimate connected to the wifi network via 11AC.

I am periodically seeing a video play OK for several minutes, then it "Reloading" starts playing from about 40 seconds earlier, plays the 40 seconds and repeats this process. I pause the play back, press the back page button, and resume the video. It resumes at the same point and plays for 40 seconds and then repeats the "Reloading" process. If I fast foreword to another part of the video, it plays for another 40 secs and repeats the problem.

Most of the time, Mezzmo plays the videos OK, but on occasion, we run into this problem.

Any ideas?

What CPU is in that 730x? Shouldn't it be an i7? I can't imagine that any i7 would have trouble transcoding any BD or DVD ISO in real time. Additionally, if you are able to FFW to any part of the movie, that would suggest that transcoding has already completed or wasn't necessary in the first place. You shouldn't be able to FFW or Rew if Mezzmo is transcoding. Can you rip one of the BDs with something like MakeMKV, turn off transcoding and try to stream that file?

[jbinkley60]

It would need to be ripped to a format that Rokus support. They have a limited codec set. But I concur with the suggestion. I try to avoid transcoding at almost all costs even though my Mezzmo server has an nVidia 1060 card in it. Also the i7 should have IQS support depending upon the model.

[cchasecfi]

Hello. Thanks for the responses. The Dell XPS 730x has an Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz 2.67GHz. I tried using HandBrake and Leawo Blu-Ray Ripper to convert the BD/DVD ISO file to one of the MP4 formats to avoid transcoding. Every one I tried compressed the video so much the resulting video quality was very poor. I tried 2 different ISO files:

1) File 1 BD ISO Size=43GB, M4V Size=11GB
2) File 2 DVD ISO Size=6.2GB, MKV Size=3GB, TS Size=3.4GB

I would like to find a converter that can produce the same quality as the Mezzmo pre-transcoded files. They have excellent quality. The best I could find was ripping the ISO file to MPEG-2. This has excellent HD and Mezzmo can transcode them on the fly.

I ran a test with 2 BD MPG files streaming simultaneously to 2 different Roku boxes on 2 TVs. File 1 MPG File Size=23GB, Transcoded at 82fps, File 2 MPG File Size=20GB transcoded at 71fps. The CPU usage was 75%, ffmpeg.exe 1=38%, ffmpeg.exe 2=37%. The streaming was excellent for both TVs. The Networking usage was less than 10%. As a comparison, the ISO file transcodes at 11fps and has all of the problems described.

Of course the optimum would be to avoid transcoding all together. I get a warning message when the temporary transcoding folder exceeds 70%, so I would have to be deleting all files periodically, or I could move the temporary folder to another NAS if the 1Gig network is fast enough to stream from.

Does HandBrake have a video format option that matches Mezzmo's? Is there a converter that uses the ffmpeg.exe transcoding module?

[jbinkley60]

DVDFab (https://www.dvdfab.cn/) will do what you want to convert with native quality. I've been using it for years. I rip everything to M2TS format, which is the native Blu-Ray format. It has a passthrough option which keeps the source bitrate but can also do MKV, MP4, HEVC and other formats. It looks like your processor is old enough that Intel IQS support isn't an option. for HW encoding for on the fly transcoding improvement.

[Peter]

Both ISO files will have the same output format for the Roku, the difference will be the input format and the decoding speed. Decoding the mpeg content of the DVD is slower and may not utilize hardware decoding which can speed up transcoding. In Handbrake you can drag the Constant Quality slider to the right to increase quality and set the H.264 level to 5.2 to increase quality.

[cchasecfi]

Hi.

The HandBrake tests were all executed with the Constant Quality slider all the way to the right. None of the output formats had acceotable video quality. My standard for video quality is the streaming video should be equal or greater than the video quality played on the TV by the BD/DVD player.

I downloaded the trial version of DVDFab 64 bit. I ripped a 2hr, 6min 22GB Blu-ray disk to a M2TS file. The conversion took 1hr, 33min running at 31.96 fps. The M2TS file size=5.8GB. The CPU was 98%, mem=48%, (5.84GB/12GB of mem).

During streaming, the video quality was excellent, however, the M2TS file required transcoding and the on the fly transcoding was slow, 22fps. The streaming would play for about 1min then stop, "Loading" for about 30secs, and repeat. Not acceptable.

I then used Leawo Blu-Ray Ripper to convert the BD to MPEG-2. The conversion took 1hr, 32min. The File size=23GB.
During streaming, the video quality is excellent, the MPEG-2 file requires transcoding. It transcodes on the fly at 102fps, CPU=73%, FFmpeg 1=39%, FFmpeg 2=34%, network was 350Mbps. Streaming is acceptable. So far, this is the only way I have been successful at streaming Blu-ray video.

The Dell XPS 730x contains 4 HD bays. Bay 1 is a 2TB WD Red system boot C: drive. It has a write speed of 105 MBps. The other three HD Bays each contain a 2TB Hitachi Deskstar. They are striped as a 6TB RAID 0 device with a disk R/W speed of 425MBps. I have located the Mezzmo Temporary Transcoding Folder on this drive, Disk D:.

So far, the DVD ISO files are streaming OK. Most of the files stream quite well, a few for some reason stream jerky. They are fairly old files I created 10+ years ago when I was learning about creating HD ISO files. I will probably be recreating them over time.

I am still looking for that conversion utility that can create the correct format for the Roku boxes that doesn't require transcoding.

[Peter]

The Roku boxes do not support mpeg or mpegts so mp4 or mkv are the only containers you can use. It may be best just to pre-transcode the files in Mezzmo and set the size of the Transcoding folder in Transcoding Settings to 2Tb. We could possibly add a feature to allow selecting multiple files in Mezzmo and saving the pre-transcoded files to another location on disk which would make it easier to copy the transcoded files to the NAS so that they don't get deleted when transcoding space runs out.

[cchasecfi]

Yes, it would appear that the only conversion utility I have come across that can effectively stream to the Roku boxes is the FFmpeg utility Mezzmo uses to transcode the video. I've convinced myself that pre-transcoding is the way to go. In addition to the enhancements to Mezzmo Media Server you suggested, adding a stop time for pre-transcoding would enable us to establish a pre-transcoding window, say midnight to 10am, so that the pre-transcoding would not conflict during the time when we would want to stream a video. If a video we want to stream had not yet been transcoded, there would be enough system resources available to transcode on the fly. I am thinking that the pre-transcoding of our 550+ titles would take days. This population is expected to grow to over 750 titles in the next few months.

In browsing through the Mezzmo temp transcodeing folder, it is hard to determine which files are associated with what video file. The grouping feature you described would be very beneficial here.

[Peter]

Pre-transcoding jobs are already given a lower priority by Mezzmo so that if the server requires to transcode a file on the fly then pre-transcoding jobs are paused and the transcoding by the server is performed. The naming of files in the transcoding folder is not in an easy to read format so you should use the 'Save As...' button on the Transcoding tab of the file properties to save transcoded files, this would be a slow process for 550+ files so hopefully we can improve this.

[Brisco]

Pre-transcoding natural burners for belly fat (https://www.muscleandfitness.com/supplements/best-fat-burners-for-belly-fat/) and jobs are already given a lower priority by Mezzmo so that if the server requires to transcode a file on the fly then pre-transcoding jobs are paused and the transcoding by the server is performed. The naming of files in the transcoding folder is not in an easy to read format so you should use the 'Save As...' button on the Transcoding tab of the file properties to save transcoded files, this would be a slow process for 550+ files so hopefully we can improve this.

How slow are we talking here? How much time would it need per single file, Peter?

[Peter]

You would need to go to the properties of each file then on the Transcoding tab click 'Save As...' and wait while the file is copied then move to the next file and do the same so because it is a manual process it will take time.

[cchasecfi]

I went ahead and started pre-transcoding. It has been running now for 3 days, it started with 704 files queued for pre-transcoding. After 3 days, Mezzmo has completed 44 files for a rate of 14.67 files/day. This will require 47 days to complete.

I attempted to use your suggestion to select a video file and select the Transcoding tab to ...save as the pre-transcoded file. What happened is:
1) I right-clicked on the metadata icon and selcted "Properties".
2) The General tab opens with the metadata displayed.
3) I selected the "Transcoding" tab.
4) The Transcoding tab opens with a blank display.
5) I select "Get Online Video Metadata" button.
6) I select "Search".
7) The metadata is displayed.
8) I click the "OK" button.
9) 3 Roku Streaming Player entries are displayed.
10) I select one of the boxe's +hls(+h264, +aac) entry
11) the "Save As" button highlights.
12) The Save As selection screen is displayed
13) I enter the same NAS folder that contains the ISO file, the filename is preselected as "vts_01_8m3u8" with "Save as Type"="All Files (*.*)".
14) I select the "Save" button.
15) After about 2min, Mezzmo Displays "File Copied Successfully"
16) I clicked "OK" and I clicked "OK" to close the "Transcoding" tab.
17) I select the Video tree entry, and it shows the ISO file and 606 Transcoded files. When I dragged the "scroll down bar" all the way to the bottom, Mezzmo crashed.
Windows displayed, the "Program Compatabilty Assistant" window:
"Windows detected that this program did not run correctly".
"To try and fix the problem, Windows has applied compatability settings to this program. Windows will use these settings the next time you run the program".
Mezzmo displayed an error box: "Mezzmo has encountered a problem and needs to close. We are sorry for the inconvenience. A crash dump file has been created and this may help the Mezzmo developers diagnose the problem that just occurred.
Please send the Crash Dump file to 'support@conceiva.com'. Also describe what you were doing when this error occurred.
Click 'Go To Folder' to locate the Crash Dump ZIP file on your computer."
18) I clicked "Close" to close the Windows "Program Compatability Assistant".
19) I used "File Exporer" to browse the video NAS folder.
20) Mezzmo placed 607 files into the folder. The filenames are:
"vts_01_6-000-10.ts"
"vts_01_6-001-10.ts"
.
.
.
"vts_01_6-605-10.ts"
21) I restarted Mezzmo Media Server
22) I turned on the TV and Roku selected the film folder from the library.
23) Roku displayed 2 folders, Docs, (where I locate the poster, label and background images), and Video.
24) I select the Video folder and 607 files are displayed, (the ISO file and 606 transcoded files). The transcoded files are all showing 9 or 10 secs.
25) I select the 1st transcoded file, the metadata panel displays, (with no metadata), and I select "Play".
26) The file plays for 9 secs and returns to the metadata panel with the next transcoded file as the file ready to be played.

Questions:

1) How do we see what files have been pre-transcoded?
2) The Transcoding Panel status bar indicates that 660 files queued, 2 files failed. Is there a log to browse to find the failures?
3) What is the value of saving the pre-transcoded file clips to another folder?
4) Did I skip a step that would have placed a single file in the destination folder?
5) What can we do with these transcoded file clips?
6) If a video file is transcoded on the fly is the transcoded file retained?

[Peter]

1) There is currently no way to see which files have been transcoded other than to view the Transcoding tab of the file's properties
2) The failures should be displayed in the Transcoding pane, try scrolling to the bottom of the list to see if they are listed there
3) It would be better to select mp4 or matroska as the transcoding format instead of the default format as this will create a single transcoded file. The HLS transcoded clips can be used, you will need to add the m3u8 playlist file to Mezzmo instead of the individual files (choose to show 'all files *.*' when browsing for the file).
4) Transcoding to mp4 or matroska will create a single file
5) The m3u8 file can be played to play the whole video
6) Transcoded files on the fly are saved the same as pre-transcoded files

[cchasecfi]

Hello.

The failures are listed at the bottom of the transcoding panel. The file has a status of "Failed" underscored in red. When we click on the red underscored "failed", we are placed in Notepad. The message displays, "Unknown error: Please enable full logging to investigate this problem".

We were able to clear the pre-transcoding list, and change the format for the Roku box to Matroska. We re-populated the pre-transcoding list with Matroska(+h264, +aac). The list appears to be sequenced in random order. We were able to find and select the files we wanted to pre-transcode and sequence by using the up/down arrows on the Transcoding Panel. We were then able to find the pre-transcoded files, and save them in a single MKV file in the same NAS folder as the ISO file.

The Matroska file streams instantly without transcoding. It has excellent video quality. We placed the Blu-Ray disk in the BD player and switched back and forth between the BD player and Mezzmo streaming the Matroska file. We could pause the playback and streaming at the same point. We were unable to detect any difference in the video quality on our Samsung 1080P 61 inch LED TV, (ditto for the DVD Disk).

So this appears to be the way to go. The process is rather slow. It takes 2+ hours to transcode a BD file. The FFmpeg.exe uses 98% of the CPU and transcodes at about 20fps. The DVDs are much faster, they transcode at 100+ fps.

We were unable to locate any files that had been transcoded on the fly. Even though the entire file had been streamed, the Transcoding Tab did not find the transcoded file. Also, we noticed that when a file was transcoding on the fly, the transcoding format was using the hls(+h264, +aac) format for streaming even though the file was queued in the list as a Matroska(h264, +aac).

We are now moving the ISO files to another NAS folder outside the Mezzmo library and retaining the Matroska file in the library.

We have been transcoding 24 hrs a day for 7 days. 168 videos out of 600 have completed and the MKV files have been captured and replaced the ISO files on the NAS. The CPU is constantly sitting at 98-100% in use, so far there has been 1 Windows blue screen crash. That happened on the 2nd day.

With all of this effort going into building the Mezzmo Library, I am taking regular backups. I noticed that the backup file contains the following folders from the Mezzmo Library:
Artwork
Temporary_Dlna_Files
Temporary_Subtitle_Files
Temporary_Thumbnail_Files
It does not contain the "TranscodingFiles" folder. This folder appears to contain a large amount of the video details. Is this correct?

[Peter]

Matroska is not able to be used for on the fly transcoding with the Roku Streaming Player profile, the default format is hls. We have another profile which uses matroska for on the fly transcoding, we can provide this if you send an email to support [at] conceiva [dot] com. Blue screens should not happen, when they do it indicates a problem with your PC such as missing system files or possibly the CPU getting too hot because the fan is not working properly. You may need to check if there is a dust build up on the CPU fan or if there are missing system files.

Backups do not contain the transcoding files, only the database files. Transcoded files can be very large and it is not practical to have multiple backup copies of them so they are left out of the database backup.

[cchasecfi]

Yes, we are very familiar with Windows blue screen crashes. It was probably some system glitch that hasn't happened since.

What does the Transcoding folder contain? It appears to be most of the stuff we have been creating over the past week+. Do we rely on Windows backup for backups of this data if our System Disk C bites the dust? I think I'll make a copy just for some peace of mind.

So far we have pre-transcoded 270 of 600 video files. The only issue we have seen is a few files that were in the queued list did not successfully complete the transcoding. The Transcoding tab was empty. There was no failure indicated. When we try and select the file for pre-transcoding, Mezzmo says the file has been added to the list, but it doesn't show up in the queue. We have selected "Pre-transcode all files" and we checked the box, "Pre-transcode files even if they match the devices supported formats". We are skipping these files for now, and when we complete the 1st pass, we will clear the temporary transcoding folder and try them again.

Yes, we would really appreciate the Matroska transcoding Profile. Look for my email.

[Peter]

There may be some error occurring when trying to add some items to the list, can you please enable diagnostic logging http://www.mezzmo.com/wiki/doku.php?id=using_logging&s[]=diagnostic then try pre-transcoding one of the files that does not get added to the list then send the logs to support [at] conceiva [dot] com so we can investigate.

[cchasecfi]

Hi Peter.

Did you receive my email back on Jan 5th to "support@conceiva.com" ? I was requesting the Roku Matroska "on the fly" transcoding profile as you offered. I never received the profile. Let me know if you need me to resend my email.

We have completed the transcoding of 100% of our 600+ video files. After several restarts of the Mezzmo Media Server, the problem video files that we had trouble getting on the pre-transcoding queue suddenly showed up and transcoded OK.

I'm still curious about the Library backup/restore functions. You stated that, "Transcoded files can be very large and it is not practical to have multiple backup copies of them so they are left out of the database backup. ". The TranscodingFiles folder is only 5MB in size. The reason I bring this up is that after we installed Mezzmo Pro on the original computer and began configuring the video library, we decided to move the installation to the current computer. We used the backup/restore process to accomplish this. After making a backup from the original computer and placing the backup on our NAS, we installed Mezzmo Pro on our current computer and restored to the backup we had made. We found that the current installation didn't contain any of the library configuration that we had been creating. When we copied the TranscodingFiles folder to the current computer, everything showed up. So it would appear that the TranscodingFiles folder would be an important part of the backup.

Another issue that sprang up is whenever we save the Matroska file, (.mkv), to the file library NAS, after about 20 saves, we receive an error box, "Cannot Copy the File: Check Folder Permissions or Free Disk Space". We have to Stop Pre-Transcoding and restart the Mezzmo server. This repeats after every 20 or so saves.

All of the converted files are streaming very well. We have seen a few that stream a little jerky. We are looking to see if this condition was in the ISO file. Would network speed be involved here?

[Peter]

Yes we received the email and sent a response with the link to download the profile. I have resent the email to your Yahoo account.
The transcodingfiles folder should be many gigabytes in size if you have been transcoding a lot of files, can you please check in Transcoding Settings in Mezzmo to make sure the path you are checking the size of is correct?
Library configuration is all stored in the .db files, the transcodingfiles folder only contains files that have been transcoded and does not contain any of the library configuration. If you move the installation to another computer then you should copy the transcodingfiles in addition to the library backup so that your pre-transcoded files are present.

I tried saving a pre-transcoded file here over 20 times and there was no problem. I also checked the code which saves files to make sure there were no handle leaks and it all looks okay. Can you please try saving the transcoded files to the local computer then copying them to the NAS using windows explorer to see if the problem still occurs?