I managed to bag three of these:
TDK AR Limited Edition Cassettes.
"Performance with style - Unique cassette design with new NP Ferric tape reproduces superb power and clarity of sound"
DSCF3792sfw.jpg 49.7K 18 downloads
More pics on Dropbox. All have decent Opera recorded onto them but the sound volume was set low for recording (I guess) and, as I only wanted 2 of these, there is one to be bagged as a freebie by another Boomboxery member quick enough to get first dibs!
If you have a problem viewing all 8 images on Dropbox, please leave a comment. Thanks.