Hello All,

My company uses a DVD to rebuild or repair PCs. It was produced in-house, and has various driver packs and tools along with quite a bit of automation. Whoever made this DVD has long since left the company leaving me with a mystery.

Being a developer, I began to look at the way this DVD was laid out. While I was able to update the automation, this disk itself is puzzling. In Windows, the DVD reports itself as 4.6 GB, but when the contents were copied to my desktop, the folders contain 20.1 GB. There is no obvious sign of disk or file compression being used, but the disk held 20 gigs!!

Do you have any idea how this might have been done? MFT Pointers? Magic?

Thanks,

Quiver