Does My SuperDrive Do "Dual-layer"?

If you are wondering whether the SuperDrive in your Mac is dual-layer capable, or whether it can store 8+ GB of data on a data DVD rather than 4+ GB, there’s a way to find out:

Screenshot showing how you can find if your Mac SuperDrive is Dual-Layer capable.Have a look at the System Profiler app (you can Spotlight it to easily find it if you use Leopard or better, or, press option while you click the Apple menu, and it can be opened from System Information there), and check Hardware, Disc Burning, DVD-Write. If you see the tell-tale “DLs” in the description, you’re good to go. Just buy the appropriate media.