Trouble with Mini-Disc / Mini-DVDRW

[Esulatell]

Today I shot some video on this camcorder for a school project:
http://www.samsung.com/uk/consumer/detail/spec.do?group=cameracamcorder&type=camcorder&subtype=minidvcamcorder&model_cd=VP-D381/XEU&fullspec=F#

I know absolutely nothing about digital video so forgive me :)
It uses Mini DV (I don't know what that is) but the disc looks like the old mini-discs you used to be able to get, now obviously the mini-disc (DVD-RW) won't fit in my iMacs drive so I put it into an old Dell running XP and the files don't show up in the explorer.
I don't have the camera anymore (its the school's) so I can;t use USB to transfer either :/

What do I do?

[mstar77]

There is one final step with those Mini-DVD video cameras that you have to do. That is to "Finalize" the disc. This closes the session and creates chapters for the DVD etc. Without doing this the disc thinks that more video will be recorded on it and therefor when putting it in a PC it will look like a blank disc. Your files are still on there so don't worry, just go back to school (or bring your disc to a retail store and do it on a demo model) and finalize the disc.

[Esulatell]

Bit daft :S thanks a lot :)