Hi I recently brought the same above cds. This is the first time ive seen 90 mins CDs (48x) here in Australia, seem hard to find.
Drive Type = CD-RW
Disc Type = CDR
Material = Cyanine
Lead In = 97:27:00
Lead Out = 79:59:73
Nominal Capacity = 702.83MB
Manufacturer Maybe = CDtech,OfficeDepot
Smart-Burn Speed Limit = 32X(Write)
Seems like they are 700mb cds and 32x, wasnt happy so i tried to burn 87 mins of data on it. I had to enable overburning to do this. Worked fine. Tested it with Kprobe and no problems ave C1 was 4.372.
I also tested it with CD Speed Overburning test, got 93:30.52 (821 mb) with a Liteon 52246S.
Guess Im happy they work, just a little strange