Hi, > The media was labeled "for Video". So I found some Maxell that was > labeled "for Data"
If those "for Video" were more expensive than the others, then you probably paid royalties to the movie industry. We had such a situation with special CD-R media for audio recording. Some living room CD recorders did not accept the less expensive normal CD-R. In general, there is no difference in BD and DVD recording between video and data. It's just a matter of filesystem (video prescribes UDF), particular files, and possibly cryptographic information for content authentication. Other than with DVD+R DL, it is not possible to chose the layer jump address with multi-layer BD-R[E]. Afaik, there is few way to distinguish a single layer BD-RE from a dual layer BD-RE other than by their size. So i would not expect that the dual layer BD-RE need any extra treatment. > Two have worked very well every time > for my 26 GByte tar file. The other three discs have the same issue as > the earlier media. > ... > Any suggestion on how to get a reliable burn? What's the symptoms exactly ? What messages do you get from xorriso ? --------------------------------------------------------------------- Preliminary thoughts. They might become useless when more info arrives. > /usr/bin/xorriso -stream_recording on Did you try with -stream_recording "off" ? That will be darn slow. If it clonks and goes to 0.0x speed with only a 0.1x every fifth pacifier messages, then Spare Area blocks get employed. (Normally you get a medium error some time later.) > -speed "-1" That's equivalent to -speed "min". Just for the records. > I also added the -speed "-1" option to attempt to > lower the write speed but it did not have any effect BD-RE as overwritable media do not offer much choice of write speed and normally do not obey write speed settings, especially if you mark the data as urgent-to-write by -stream_recording "on". Have a nice day :) Thomas