I burn Verbatim DVD-R 1-8X at 4X speed.
Memorex and TDK have bad track records here. My Apple 4X check out as Maxell. Haven't bought Apple's for some time. I'm using white inkjet printable and I haven't seen Apple selling those...
BTW, I have no complaints. Some players older than 2 years may not have DVD-R as a format they can play. Some may play them, like the 5-year-old Sony I gave to my neighbor. It won't play CD-R though.
You might fine this of interest:
My reliable DVD-Rs have been: Apple 4X (Maxell ID), RiTek 4X; Verbatim 1-8X, RiData 8X, and PioData 8X, all white inkjet printable. The RiData and PioData checked out to be RiTek-made.
Verbatim is reliable and can be found in many stores in the USA. They even make a special grade for medical records.
You can buy the RiTek, RiData, and PioData at:
http://www.shop4tech.com/
Verbatim may be available in your neighborhood store or:
http://www.taperesources.com/
http://www.newegg.com/
Apple brand can be purchased from the Apple online store.
You can check the manufacturer's ID by using DVD Media Inspector:
http://homepage.mac.com/raktajino/dvdmediainspector/dvdmediainspector.html
You could wade through this:
http://www.videohelp.com/dvdmedia
From that database: Five brands and who actually manufactures the DVDs:
TDK = TDK, RITEKG04, RICOHJPN, MXL, CMC, MCC
Memorex = CMC, RICOHJPN, PRODISC, INFODISC
Imation = CMC, MCC, Ritek, Prodisc
Sony = MCC 01RG20, Sony04D1, TYG01
Fuji = FUJIFILM02..4X, FUJIFILM03..8X, ProdiscF01..8x, ProdiscS03..4x, PVC001001..2x, RITEKG03..1x, TAIYOYUDEN..2x, TYG01..4x, TYG02..8x
This can result in "mixed" experiences...
My friend used TDK on his Mac and it wouldn't play in his 5 year old Sony DVD player. All of mine play OK in his "antique" Sony. Update: He finally gave up on that antique and bought a Sony DVPNS775V
http://ww1.onecall.com/PID_22332.htm which also plays double-layer DVD+R.
