i tested it. i recorded the full 2048mb timeshift.dat

i jumped to the bginning of the record. then sound and video are synchron, but while playing the video is slower than the sound and it is not snychron. the difference are a few seconds when i watch a minute or two of the record.

it looks like it depends on the record time. i tried with 204mb timeshift file and it is synchron.

but then the record time isn't long enough, the settings with 2048mb are better but the sound (i think as longer as the record is behind the actual video) is not synchron, it has sometimes more than 1 ...

When i watch TV from Timeshfit.dat (Buffer Size: 2048mb, max. record speed 3000KByte/s) the sound and video are not synchron.
i use the free version of ProgDVB. would be great if this could be fixed.