Of course you know that Blu-ray is the new standard for movies, but have you thought about using Blu-ray discs for storage?
Blu-ray is a new optical storage media that is meant to replace the standard DVD format. It provides significantly more storage space than standard DVDs, with standard single-layer Blu-ray discs holding up to 25 GB (4.7 GB for standard DVDs) and 50 GB for dual-layer discs. Understanding the differences between media types is necessary for selecting the right Blu-ray media for your storage needs.
Blu-ray Disc Recordable (BD-R)
Blu-ray Disc Recordable (BD-R) discs are comparable to CD-Rs and DVD-Rs in the fact that they can all only be written once. However, BD-R discs tend to be readable in a larger number of players than other types of Blu-ray media. Currently, 25 GB single-layer and 50 GB dual-layer BD-Rs are available on the market. Single-layer BD-Rs are considerably cheaper, with an average cost around $2 to $5 per disc. Dual-layer BD-Rs are much more expensive, costing about $12 to $20 per disc.
Blu-ray Disc REwritable (BD-RE)
Blu-ray Disc Rewritables are comparable to CD-RWs and DVD-RWs, since they allow you to record multiple times to the same disc and erase data from the disc. Currently, BD-REs are 25 GB in size, but larger discs are expected to be on the market soon.
Future recordable and rewritable discs are expected to have a much higher storage capacity, since it is believed that the maximum storage limit for Blu-ray discs has not been achieved. Currently, a 200 GB rewritable disc has been developed but is currently unavailable on the market and not compatible with many Blu-ray discs.
Using optical media or other forms of backup can help you avoid a catastrophe. But when it's too late, there are still some competent lifesavers; when in doubt, look at our reviews of the best data recovery programs (or Mac-specific data recovery software).
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