Christopher

Hi floele Sorry I didn't get back to you! I'll give it a try and see what happens. The problem I was having last time was that the drive / Windows wasn't even able to recognise a data structure on the disc, but I'll give it a try...

I'd be happy to provide, if you can suggest an appropriate technique to get a usable raw dump of the first few meg of sectors I suppose I could try something like dd in a Linux machine but I'd have to sort out a boot disc, I run Windows (and the disc is reported as empty by the OS...)

Agreed For some reason the UDF filesystem isn't recognised - incompatible block/sector sizes? Bug in Starburn? Was the session not properly closed? I bet if there's a way to force the Starburn engine to interpret the session with a particular filesystem, we would have luck reading the data. I've not yet tried a raw read to recover the data, I'd have to investigate how I can do that. I suppose I might be able to boot to Linux and manually mount the disc... I just hope I haven't lost the discs, I let CDBXP verify each burn so assumed they would read ok I didn't manually check each one before

I'm not sure I have the ability to choose my filesystem before CDBXP asks whether I wish to import the previous session -- I choose new Data burn, it immediately prompts for whether I wish to continue my session or start new and ignore the existing session. I hit continue, and it then gives me the "The session cannot be imported, because the session's file system is not supported" error message. If I cancel that out, go to "Disc -> Change File System" and change it to any UDF format (I've tried all of them!) then reopen the disc compilation, it doesn't work. In fact it seems to be revertin

I've used CDBurnerXP for ages so was understandably delighted to find it also had fairly mature Blu-Ray capabilities. I burned a bunch of discs with backups of hard drive contents; some DAO, but some multisession - my aim was to fill the remainder of each disc with more files later, then close the discs. I returned to read a multisession disc, burned as UDF 2.50, which I'd deliberately left open in CDBurnerXP -- to find Windows can't read it (though it can see the space has been used)! CDBXP reports: "The session cannot be imported, because the session's file system is not supported. The