Hi, Bill Davidsen wrote: > Is there some way [...] the "right" value for "i" can be determined?
If it is really true that Giulio's system+drive demand a "Maximum Number of Descriptors" which is not larger than the available number of descriptors, then the method of dvd+rw-tools would be such a way: - First execute the command with requesting at most 1 descriptor (0 is suggested by MMC-5). - Read the number of available descriptors from the reply. - Repeat the command allowing exactly that number of descriptors. The other two MMC commands of which Giulio reports problems > "read track info" "read disk info" are 51h READ DISC INFORMATION 52h READ TRACK INFORMATION which both have a parameter "Allocation Length" with similar purpose as parameter "Maximum Number of Descriptors" of our friend ACh GET PERFORMANCE With 52h the reply size changed from 36 bytes in MMC-3 to 48 bytes in MMC-5. The failing command of cdrecord allowed 48 bytes of reply. This is the first time i see a reason for the careful reply size preparations of growisofs. Up to now i wondered why Andy does such an effort with replies where one can easily make a sufficient estimation. Well, i got my own riddle to explore. (Especially why telltoc and cdrskin show a different number of commands although they sit on the same same function in libburn.) Have a nice day :) Thomas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
