Error: Blank check.
Analysis: This error can occur if the TOC is written but the location that a TOC entry points to is blank. This can happen during Disc-At-Once (DAO) recording because the TOC is written first and then the data. The error can occur should an error occur during the writing of the data and you attempt to read this disc.
Solution: The disc you are reading is bad and must be recreated or replaced. Contact Technical Support to report this problem should it continue to occur.