As what Areality said, burn into DVD+R (or DVD-R, doesn't matter).
Not all DVD media is same quality. Don't buy those cheap no brand type.
Usually, made in Japan or Singapore is the best but now is so hard to find.
Most are made in Taiwan.
I recommend mitshibishi chemicals (or verbatim) DVD media. Supposed to be good quality.
Better be safe then sorry. You buy those lousy ones may degrade in a few years time.