Blu-ray Disc recordable (or BD-R) refers to two optical disc formats that can be recorded with an optical disc recorder. BD-R discs can be written to once, whereas BD-RE can be erased and re-recorded multiple times. Disc capacities are 25 GB (23.31 GiB) for single-layer discs and 50 GB (46.61 GiB) for double-layer discs.

Pricing

$5 — $200

BD-RE Versions

Version 1.0
  • unique BD File System
  • not computer compatible
Version 2.0
  • UDF 2.5 file system for computer use
  • the use of AACS
  • BD-R Version 1.0 follows this specification
Version 3.0
  • camcorder (8 cm) discs added
  • backward compatible with Version 2.0
  • BD-R Version 2.0 follows this specification

BD-R Versions

Version 1.2
  • add BD-R Low To High (BD-R LTH) standard

Speed

Drive speed Data rate BD-R write time BD-R DL w/time
1X 36 Mbit/s 4.5 MB/s 4.39 MiB/s ~95 min. ~190 min.
2X 72 Mbit/s 9   MB/s 8.78 MiB/s ~47 min. ~94 min.
4X 144 Mbit/s 18 MB/s 17.56 MiB/s ~24 min. ~48 min.
6X 216 Mbit/s 27   MB/s 26.34 MiB/s ~16 min. ~32 min.
8X 288 Mbit/s 36 MB/s 35.12 MiB/s ~12 min. ~24 min.
10X 360 Mbit/s 45   MB/s 43.90 MiB/s ~10 min. ~20 min.
12X 432 Mbit/s 54 MB/s 52.63 MiB/s ~8 min. ~16 min.

From Wikipedia