New copy protection: A/V sync tricks?

[temporance]

I've found a couple of recently released DVDs that have serious A/V sync problems after ripping and encoding. It's not a simple A/V offset - that would be simple to fix, it's more like several offsets that accumulate throughout the movie resulting in a big drift by the end. Some serious editing is needed to get everything back into sync.

I haven't seen A/V sync problems like this for a long time and these are PAL R2 DVDs (I don't want to name them atm). Drift IME used to be more common on older NTSC releases.

The DVDs play fine on hardware and software DVD players, seeking works fine, etc. I'm just wondering if this might be a new trick by the publishers (or Macrovision) to make life harder for rippers.

Has anyone seen anything similar, or am I just being tinfoil-hat paranoid? Can I fix this problem at the ripping stage?

TIA

[setarip_old]

Hi!

I've found a couple of recently released DVDs that have serious A/V sync problems after ripping and encoding.

What software and procedures are you using?

these are PAL R2 DVDs (I don't want to name them atm)

NOT providing the titles can only make it more difficult to get a meaningful answer...

[CWR03]

NOT providing the titles can only make it more difficult to get a meaningful answer...

Not only that, it raises the suspicion that you are requestion help with illegally obtained copyrighted material. Post your logfile.

[temporance]

The titles are legally obtained and I am legally within my rights to recompress them.

I am using a slightly modified GK process. Btw, I'm not looking for help encoding, just asking if anyone else has seen anything like this and whether there is anything I could change when ripping that might affect AV sync.

[setarip_old]

just asking if anyone else has seen anything like this

I saw this when trying to use VirtualDubMOD to convert "Pulp Fiction" R1.

FlaskMPEG V.0.594 (PX3 v.0.0.4e Final) handled the DVD flawlessly...

[Zig Fowler]

I've seen this with DVR-MS files converted to MPEG2. Then the MPEG2 converted to XviD AVIs through AUtoGK. But AutoGKs audio program (I forget the name at the moment) catches the errors. It says something to the effect of "audio out of sync.. resyncing". When I play the AVIs all is well.