Clone DVD Error Message

[Martice]

Hello all. I am new here and I hope you can help me. I am receiving the following error message while trying to record Jurassic Park 3 using CloneDVD:

Scheduler 0 D:/VIDEO_TS/VTS_01_1 . VOB:1235: READ.ERROR PICTURE READER

I have no idea what this error message means and would like to know if it can be corrected.

Thanks

System:

Shuttle SN45G
AMD 2500+ (Barton)
Sony 510A DVD burner
Seagate 120GB Hard drive
1 GB of Memory