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Chapter 24. Making Your Own Digital Reco... > Features and Considerations

Features and Considerations

Beyond selecting the right type of CD or DVD burner in terms of its read and write capabilities and supported formats, you’ll also want to look at its speed of operation, form factor, connectivity, and added software. In terms of speed of operation, if a burner copies at a real-time speed, then its speed is designated as 1X. In general, this means that if you copy a three-minute song, it will take three minutes to make the copy. Most CD and DVD burners operate at speeds up to 12X for writing and up to 32X for reading, but this will vary based upon the specific type of format being read from or written to and whether the format is recordable (write-once only) or rewritable.

In terms of connectivity, an external CD/DVD burner will typically support USB 1.1, USB 2.0, FireWire, or a PC card interface. USB 2.0 or FireWire are the preferred options if your laptop or PC supports them due to their speed of data transfer. USB 2.0 transfers data at 480 Mbps, and FireWire transfers data at 400 Mbps.


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