It's possible to connect the Toshiba drive to any desktop computer of any make via the USB connector and access its filesystem. But was this really unexpected?
Last Saturday Xbox-Scene picked up on a release by blueprint stating the following:
[…] the most important thing is were now able to read the UDF (Universal Disc Filesystem) v2.5 which is currently used by the Toshiba Corp with there first generation HD-DVDRom drives. You can see the entire contents of the HD-DVD Media when in the drive. […] these are literally Toshiba Corp drivers for the file system used with HD-DVD. We did not create these drivers ourselves, so we cannot modify them, however there availability is limited to specific machines which were familiar with from our places of business, and we will continue to get the latest updates of these drivers and make them available to you as they're released to us."