For the next week Circuit City are selling ESA 25pk MID CMC MAG E01 (+R) for $6.95 no rebates not a bad deal.
I do not know the MId for the -R, but would assume it would be CMC MAG AE1
These seem to be pretty darn good - considerably better than the TDK-branded printable white-top CMC E01s I got from the same retailer (which I returned and exchanged for these). Here's a scan burnt on my 1620 @ 8x - not bad at all for 27.8 cents/disc + tax!
Videohelp reports the - as ae1. I have had pretty good luck with tdk and phillips brand e01's.