Converting DAT to MPEG error: Specified DAT file has an invalid header signature

Using VCDGear gave me this error:
Specified DAT file has an invalid XA header signature

and:

Corruption might occur for non-valid pack sized MPEGs


It wouldn't convert it to mpeg. I have downloaded TMPGEnc but have yet to understand how to use it.

Do I have a corrupt file and just need to forget it?
Will TMPGEnc do any better? If so, any links for help or advice is welcome.

I had a bin of the VCD, used ISOBuster to extract it, and got this error, could this be a problem?

Thank you,

 

I just realized I posted this in the wrong forum.

Sorry about that.