Looking for a program to fix MPG files

[RNCSerge]

I have soime MPEG1 files, and when I play them on my DVD Player (it's one of those where you don't have to author them, just throw them on there as regular files) the timecode seems screwed up on some of them. I need a program that will fix any problems without recompression (like ASFTools), but for MPEG

[setarip]

TMPGEnc>>File>>MPEGTools>>Merge&Cut

Load file
Set mode to "plain vanilla" MPEG1 (NOT "MPEG1-VideoCD", unless it is, in fact, VCD)
Save with a new filename