What kind of media does the Sony recorder burn? DVD-R? DVD+R? Both?

Also, you probably want to look into getting 2x or faster media, since 1x disks take about an hour to burn.

A lot of information can be found here:
http://www.vcdhelp.com/
http://www.vcdhelp.com/forum/viewtopic.php?t=129009

And here are a few vendors:
http://www.supermediastore.com/
http://www.allmediaoutlet.com/
http://www.meritline.com/
http://www.cdrdvdrmedia.com/

Knock yourself out,
-Biscuits