Hi, the drive and Brasero work with DVD+RW, unformatted DVD-RW, and formatted DVD-RW. No bad symptoms to see, except that i get molested by the automounter and that i often have to repeatedly double click the drive field and the "Burn" button before burning begins.
These successes give me the idea that the culprit is some software which wants to play the CD as audio CD. This needs a different SCSI command for reading. It's name is READ CD and it can be told to require CD-DA sectors of 2352 bytes rather than the 2048 bytes of data CD sectors. This would somehow explain the SCSI error "unaligned write", which then actually would rather mean "unaligned read". (This imposes the riddle why the TSSTcorp drive in the USB box does not cause such an SCSI error message.) ------------------------------------------------------------------------ Tests made: First i put the DVD+RW into the ASUS and start Brasero. The DVD gets found and after a few double clicks on the drive field, the Burn button finally works and "Burning" begins. "Finalizing", "SUCCESS", "Checksum", loud reading, "Ejecting medium". No SCSI error. xorriso -toc shows the written session. dd if=/dev/sr0 bs=2048 count=193536 | md5sum yields the correct MD5. (That @#$%^ automounter mounted it without asking me. Some other software pops up the window offering to start the file manager.) Next try: Brasero starts up with empty tray. Then i put in the DVD+RW from which i removed the ISO 9660 superblock by xorriso -blank. All works fine. No SCSI error message. Now with unformatted DVD-RW, fast blanked by xorriso -outdev /dev/sr0 -blank deformat_quickest This yields a medium state that is only suitable for write type DAO, which can only take a single session. The DVD-RW is an old 2x speed type. Full blanking would last about 40 minutes. Starting Brasero while the DVD is in the ASUS drive. All is well. Just half as fast as with the DVD+RW. Now after formatting the DVD-RW by unmounting (grrrr) and this run: xorriso -outdev /dev/sr0 -format as_needed which lasts 40 minutes, i can burn and the drive stays usable. ------------------------------------------------------------------------ Have a nice day :) Thomas