This is a good deal:
http://www.allmediaoutlet.net/pricewatchspecial50pack.htm

I am not sure of the quality of these discs, but I bought a box to check out with my DVR-A04. They should be here soon.

Just an update for those on the fence about buying cheap DVD-Rs.

I have received these discs and they are good. Plain smooth silver top. They burn great at 4x on my new DVR-106 (about 15 minutes for a full disc). The bottom is light purple (not as dark as most others I have used). I will likely buy more.