Don't know if this topic have been already answered in the past, but as news on subject of reliability are increasing, I think it's worth to ask. Can you give an advice on marking DVDRs with a marker pen? Pens are similar, or are some better than others (marketing blurb excluded)? And labeling with CD/DVD labels (printed or not), is that good? The two methods can affect the DVD reliability (short/long term)? Thank you.