iso file structure
 

hi,
i'm trying to do a project to write a device driver for linux to implement a virtual cd device...this device driver will return the appropriate file from an iso image file present in the hard disk...an association wil be made b/n the iso file and the driver....
cd supported applications then wil not require a physical cd device to be present...

For this i need to retrieve files present in the image file.......
so i need to know abt iso file structure..........pls help me by suggesting measures or suggesting tutorials that wil give me a great deal of info abt iso file and file extraction from it......

It's been done.. you could probably just view the source, but that would be cheating on your project ehh ?

wikipedia has links to the standards etc.. http://en.wikipedia.org/wiki/ISO_9660

The Virtual CDROM jukebox article Linux Journal did a few years back sounds like the same thing you are describing.