DVD brands - does it matter?

I have been using only Sony DVD (-RW, +RW, etc) types in my cam. If I decide to burn some DVD's is it advisable to use Sony or could I burn to a Memorex or some other type? Has anyone used other DVD brands for recording?

Have read of this:

http://www.digitalfaq.com/media/dvdmedia.htm

What an informative and thorough guide. Thanks for sharing, this is just want I was curious about.