Can't copy discs burned with convertxtodvd



I’ve found several discs that I burned recently that I can’t copy. They play fine on my dvd player but when I try copying them on the pc, I get a crc error on the last file. Appears to be a filesize error. Anyway, the discs are different types of media. The only thing in common was that they were burned on the same drive and they were burnt with convertxtodvd. I’ve tried reading them on different drives with the same result. Anyone know of way to get around this? I’ve tried isobuster and cdroller but neither worked. Also, I can’t figure out how to get the dvd project reloaded back into convertxtodvd.