Hi, Helmut Jarausch wrote: > I tried PLATINUM and VERBATIM media. > This seems to be connected to this burner (and its > predecessor LG GH20NS15) > I have two PC (both AMD 64 running a recent Linux > system with an 2.6.26 or 2.6.28 kernel) > Both show this problem (with cdrecord only). > I managed to burn the CD with cdrskin,
This is a surprise. Two media brands and two burners are quite beyond the doubt that this all is white noise from a mad drive. It must be some prelude command of cdrecord which confuses the drives. Or is it the write block size ? Helmut reported: cdrecord: Input/output error. write_g1: scsi sendcmd: no error CDB: 2A 00 FF FF FF 6A 00 00 1F 00 Sense Code: 0x30 Qual 0x05 (cannot write medium - incompatible format) which means that 31 blocks were about to be written to LBA -150 for a SAO start. The negative address is correct. But maybe the drive would prefer to get 16 or 32 blocks per WRITE. We saw problems with DVD+R DL after the first layer was done. Could this be a new kind of odd consequence of the write buffer size ? libburn writes 16 blocks for CD and DVD, 32 blocks for BD. ---------------------------------------------------- Helmut Jarausch: > cdrecord even failed to burn a DVD on those machines, > while growisofs succeeded. Afaik, growisofs sends 16 blocks per WRITE command. I think we got a suspect now. Maybe Joerg knows a way how to influence write buffer size with cdrecord. So Helmut can do a test ? Have a nice day :) Thomas -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
