Blu-ray Disc
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. |