rift

You may need a different driver for your controller or something. Do you have an AMD board? The 'invalid field in cdb' one is fine and to be expected for that command/media. I switched the SATA controller (from JMicron to Intel) and the problems are gone now. Seems the JMicron controller was the cause of the problems. But I still get one error in the verification phase: Thanks again for your support!

Thank you Lightning for your reply. I just burned another disc with enabled debug information. Several times there is a semaphore timeout and "Invalid Field in CDB" error. Is this something I should be concerned of in terms of the quality of the backup discs? Also does ImgBurn read the session count (while verifying) in another way as when the information is extracted for the "disc information box" where the session is correctly displayed? Full log:

Hi, I repeatedly get an "CompareImageFileLayouts Failed! - Session Count Not Equal (1/0)" error while verifying burned bluray discs. I included the log file below. The used burner is a new LG BH10LS38 (newer model of the BH10LS30). The blank discs used are TDK BD-R 4x 25GB (HTL) (see disc info below). Any ideas what the reason for the verification error could be? The data on the "failed" discs are normally readable though. Also another question: I've set the read buffer size to 512MB in the settings but ImgBurn keeps filling only 40MB - why?. Thanks! Before burning: After burning: