If the DVD you're burning is longer than an hour, you really need to use those big 8.5GB discs. While Verbatim is a little more expensive than some of the competition, I haven't had a single issue with them, while reviewers of other similar (and cheaper) products have complained of a lot of crashes. You get what you pay for.
π Verbatim BD-R 25GB 6X Blu-ray Recordable Media Disc - 3 Disc Jewel Case Box - 97341: High-Capacity Blu-ray Recording for Optimal Storage
10 Review
Sony 50DMR47SP DVD R 4 7GB Recordable
10 Review
High-Quality Philips 16X DVD+R Media 50 Pack π - White Inkjet Printable - Versatile Cake Box Packaging (DR4I6B50F/17)
10 Review
Verbatim 4.7GB DataLifePlus DVD-R 50-Disc Spindle: White Inkjet Printable with Hub Printable - 16x Recordable Disc (95079)
10 Review