VeNorm

Okay, thanks for help, all works fine.

Now i spend some time to test some little things and also used google with different types of keywords, without luck. The SCSI and MMC definitions are clear. But the ECMA-119 document ist very bad i think. To get into this stuff (because i will backup my customer database and create an iso and then burn it to a disc) i created a small image file with imgburn. Only 2 files, not more , level 1, all other options off. After going through the file with an hex editor and the ecma specs, i am stuck at the data of the stored files. First i read out the primary volume descriptor to getting the offset of the path table. Using the new offset then i enumerate all the entries by checking first byte of the data if its a valid directory entry. So now i get the filesize and the offset of the file. The problem is, should all data split in 2048 byte blocks, because i am wondering why there are some 00 bytes after the first file before the second starts (this also happens with lots of 00 after the volume terminate set) ? A small question to your program: Imgburn gives a warning message if anydvd is on, why is that, because i have the option to select the elbycdio scsi layer, but if i am right anydvd also uses this layer. Whats the different or more precisly whats the problem if both programs are running? Thanks again for help and a beautiful program bye, VeNorm

Okay thanks. I will test a something...

Okay thanks i got the idea. Can I ask you a little bit if i get some big problems ? bye, VeNorm

ahh okay thank you. Okay thats great, because i also often works with the DeviceIoControl function. It sounds really easy, but i think the hard stuff is to setup the CDB right? How do you enumerate the drives? Do you test all the 26 possible combinations or do you use the SetupDi functions of windows? And the CDB, would it be a help to test CDB structures with the DVDInfoPro tool or ist it not recommend? The next point is, i haven't so many information about cd roms and so on. if i understand right, the data on a disc is exactly what an iso-image is ? Thanks. bye, venorm

Hi @all, hi @LIGHTNING UK! At first i must say, wow, Imgburn blows all the commercial products away. Now what i want to know, because i am also a developer (but not so hard like you hehe) and its time for me to get into this stuff. Actually i developing with c++ and the winapi and doing some things with mysql, so the most time i spent time for developing database applications. And now i want to expand my knowledge on aspi/spti after i saw your imgburn. My problem is how to get started ? Should i read directly the scsi and mmc specs from t10 or should i first inform about how cd drives and cd works in general (so i think there are some unclear definitions for me, like pre gap) It would also be great if someone have links to interesting code snippets, becaue google does not know so much about aspi and mmc commands Thanks for help and have a nice day ! bye, Venorm