I just got a 100pk TYG01 from supermediastore. When I placed them on the cakebox, i noticed with the light the edges were bumpy (like a diamond cut reflection). I can feel the bumpiness w/my fingers. I have had no problems, backed up about 10 of my dvd's. I checked the Maxell i had previously bought at wal-mart, and they too have these bumpy edges. Is this normal on all dvd's? I compared CD-R's and they don't seem to have this. Thanx.