I have Mezzmo installed on a PC which has a 3GHZ quad core intel processor 8 gig of ram running windows 7 x64, wired into a 10/100 network and also a Sony Bravia KDL-40EX503 TV which again is wired into the network. The network has a number of other devices, including a sony PS3 (wired) and a netgear EVA 2000 media player (wired) In addition the network also supports two 802.11n devices which are an apple ipad and iphone.

The Sony TV is supports .VOB and .m2ts and .ts video file but sadly there is no .avi support. I have a number of .avi movies and so mezzmo transcodes these files using the SonyBraviaKDL.prf profile in C:\Users\All Users\Conceiva\Mezzmo\DeviceProfiles. Sometimes I pre-transcode the files and other times I transcode on the fly. Transcoding is now set to its default settings though I have tried lowering the CPU priority in the past.

On occasions (usually when I am showing friends/family how good mezzmo is!!) I play an .avi movie and after a short while the audio begins to move out of sync with the video. If I stop the movie and restart it the audio sync is corrected, but after a short time it slips behind again.

Now on other occasions I can go to the exact same movie and it runs fine.. no sync issues at all. I thought it maybe something running on the PC such as 'defrag' or virus scanner etc but as far as I can see nothing 'additional' appears to be running at the time the audio sync issues occur so thought the problem maybe to do with the configuration of ffmpeg and the assigned transcoding profile.

I am new to mezzmo and ffmpeg, but have read in this forum about adding -async to the SonyBraviaKDL.prf profile under the section/tag <ffmpegadditional> but having tried that in each mention of the tag in the profile I simply then get "file not found" on my TV, albeit I can see and browse to the .avi movie itself. I have now reverted back to the original SonyBraviaKDL.prf profile.

I was hoping the -async option would work but that has not fixed it for me.

My Sony PS3 does support the .avi format and therefore no transcoding is necessary and mezzmo streams all the .avi movie files perfectly, in fact I have never encountered any problems with the PS3 and the audio sync etc has never been an issue, same goes for the EVA 2000 media player.

I just thought I would ask to see if anyone else has experienced the same or similar issue and to ask for some support or advice as to what I can try next.

The virus firewall software running on the PC is Kaspersky Internet Security 12 - Note I have not disabled this at the moment as I am not sure that this is the cause of the sync issue.

This is my first post, so thanks in advance