Video playback speeding up !! ?

[Psychlops]

Hi

I have "backed up" a DVD using smartripper, then DVD2AVI, then used TMPGENC to encode to a .mpg file. When I play back the .mpg file (both using ShowShifter or ATI file player), I notice that during the middle of the film, video sequences are too fast, then it appears to be correct towards the end. Does anybody have any ideas about the likely causes?

Thanks

[txpharoah]

May just be your system having hard time with MPEG. The file may be fine, your system just freaks on playback. I have that sometimes on 4 gig files. Don't play them. Put them on disc. And then play them.

[Psychlops]

txpharoah

Forgive my ignorance, but why should playing the file from a VCD rather than from hard-disk make a difference? Also, this has happened to only one film so far (I've only ripped about 5), and the others play OK.

btw my system is P4 2.5GHz/533 FSB with 512MB ram running Win/XP. Hard-disk is Maxtor 120GB ultra-DMA.