Double sided Riteks are fine.... They work great...
A word of warning....
They are very picky....
Mainly because there is a writing surface on both sides of the disc....
You need to be VERY carefull when handling them.... Because one slip can render a disc useless....
I personally do not use these anymore....
I like to have one side of the disc that has no info on it....(makes handling easier)
I'm CLUMSY (and drink way too much beer

)....