Good news, after a lot of research and trial over this community and others i did tried MKVtoolnix and Cocoon Software QMC (Quick Media Converter) .
Like i said i have sync problems with HD AVI and HD MP4 files with my WD TV HD Gen2 player, any other format works pretty well.
I tried MKVtoolnix with MKVmerge and it didn’t work well with my WD TV HD player. It freeze.
But with QMC (Quick Media Converter) from Cocoon Software it’s working well and it is fast converting the mp4 to mkv files. The software is free, they working with donation.
Here how i did it :
First you can download the software from http://www.cocoonsoftware.com .
After the installation you run QMC.
IT can convert any video files to anything but the easiest way for HD MP4 is :
Go in HD MODE
Choose MATROSKA format and MKV container
Add your mp4 file to convert
Select your target directory
AND START THE CONVERSION…after a minutes or two, your done with your problem!
QMC is changing a little the audio and video format and it seems to be a lot easier for the WD player.
Hope this will help anybody that got problems with some video format and their WD TV HD player!
Good Day! :smileyvery-happy: