I always pick the best dvd-r .. I just don't don't trust my movies and mp3's with low quality dvd-r's such as 99 cents brands.
If you want your files to last long get brands such as "Taiyo yuden", or "Ritek"! If you want a cheaper solution with out risking quality, you can purchase Dvd-r's that contain AZ0 dye.

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I use Memorex CD-Rs and I have one Sky DVD-RW.

To be honest, I get the cheapest good brand, and I buy them in bulk.

For DVD's i go with TDK RW's.
For CD's same as Admin, Memorex CD-Rs (2in1)

CD-rw/DVD-rom (built-in)
CD-rw/DVD+rw (One technologies AluWriter) USB.

All crap since im always on the run with a laptop

I use the cheap pc world ones, there fine for me.

CD-R --> Philips
CD-RW--> Sony
DVD-R --> Sony

IMO Sony discs are little bit on the expensive side. Memorex, Ridata is very good for DVD+Rs. Ive used them and had zero coasters.

Taiyo yuden exclusively, best dvd media there is