The listing, 19 OXM demo discs. has ended.
These are 19 demo discs from Official XBOX Magazine.
They are for the 360 but some also have content for the original XBOX.
You can go to http://xbox360.ign.com for info on all these discs.
Disc numbers are: 56, 57, 58, 59, 61, 62, 63, 65, 66, 67, 69, 70, 71, 72, 74, 75, 76, 78, and 79.
Some need cleaning and a few have some scuff marks and minor scratches, but the majority are in good shape.
Edited for typo.