DVD-R is the older technology but is the most compatable as far as playback is concerned on most Set Top Component DVD Players, which will be most critical when you burn DVDs to share with others, I haven't had any DVD-R burns not playback on any of my friends and family Players, but I have had Component Players refuse to playback the DVD+R, my personal Top of the line Panasonic unit being one of those, now DVD+R as far as computer Data and playback will virtually never be a problem, if it can burn it, it can read it. I hope that helps you.
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