Re: Setting booktype on BTC 100[48] drives

[Andy Polyakov <appro@fy.chalmers.se>]

> Does anyone have a patch to allow dvd+rw-booktype to set the booktype
> on the BTC 1004/1008, or want to write one?
>
> I believe the magic incantation CDBs are:
>
> Set DVD+/-RW media to DVD-ROM: fa 00 01 00 00 00 00 00 00 00 aa ff
> Set DVD+RW media to DVD+RW:    fa 00 92 00 00 00 00 00 00 00 aa ff
> Set DVD-RW media to DVD-RW:    fa 00 32 00 00 00 00 00 00 00 aa ff
> Set DVD+/-R media to DVD-ROM:  fa 00 00 01 00 00 00 00 00 00 aa ff
> Set DVD+R media to DVD+R:      fa 00 00 a0 01 00 00 00 00 00 aa ff
> Set DVD-R media to DVD-R:      fa 00 00 20 01 00 00 00 00 00 aa ff
> "Clear" (whatever that means): fa 00 00 00 01 00 00 00 00 00 aa ff
>
> You may also have to send 0x14 zero bytes as data, but I don't know if
> that's actually required.

Where does this information come from? I mean there're several questions 
and if you're just passing it by, then it's of interest to turn to 
original source. First of all can you confirm that this actually affects 
DVD-dash recordings as well? For example there basically no difference 
between 2nd and 3rd command, does unit really tell apart them and 2nd 
command is meant for DVD+RW and 3rd - for DVD-RW? Note that it's 
possible to modify booktype utility and program at least HP units to 
brand DVD+RW as DVD-RW (it doesn't improve compatibility, but it's 
possible to do). Is there command to ask unit for current settings? It 
looks like commands are 10 bytes long, not 12... Questions like that... A.