>>
>> a) add flushcache scsi command in cdclose. this will fix 3! i have this
>> drive for 1 hour from now only, it's not mine. could anyone tell me how
>> to send scsi command to drive? i know parameters dvd+rw-tools's growisofs utility.
>> i have no experience.
>
> /sbin/scsictl /dev/cd0d flushcache
>
> Seems to work on my DVD+RW drive, but I haven't tested it with a DVD+RW medium.

hmm.. works on IDE drive :)