I'm having some problems with these new Memorex's I just picked up. They're DVD-R and I don't know if its just a conversion problem or what but when I put these disks in any type of DVD player it just says something like "Bad Disc" or "Disc Error" etc... So, thats brings me to this question. Which is better, DVD-R or DVD+R? Is there any pros or cons for either? Also, what brand should I get? I have a lite-on DVDRW, an older one. Got it around when DVD burners first came out.