Release/Format: Difference between revisions
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| [http://shm-cd.jp SHM-CD] ([http://shm-cd.co-site.jp/about/ english]) (Super High Material CD) || 2008 || Common || PCM || CD |
| [http://shm-cd.jp SHM-CD] ([http://shm-cd.co-site.jp/about/ english]) (Super High Material CD) || 2008 || Common || PCM || CD |
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| [wikipedia:Blu-spec CD|Blu-spec CD] || 2008 || Common || PCM || CD |
| [[wikipedia:Blu-spec CD|Blu-spec CD] || 2008 || Common || PCM || CD |
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Revision as of 22:20, 1 July 2011
This field describes which medium a release is distributed on. Normally a release will be distributed on multiple media with different catalog numbers and barcodes; each should have a separate release event.
The values may be:
- CD
- DVD
- SACD
- DualDisc
- LaserDisc
- MiniDisc
- Vinyl
- Cassette
- Cartridge (4/8-tracks)
- Reel-to-reel
- DAT
- Digital Media
- Other
- Wax Cylinder
- Piano Roll
- Digital Compact Cassette (DCC)
- VHS
- Video-CD (VCD)
- Super Video-CD (SVCD)
- Betamax
- High Definition Compatible Digital (HDCD)
- USB Flash Drive
- slotMusic
- Universal Media Disc (UMD)
- HD-DVD
- DVD-Audio
- DVD-Video
- Blu-ray
- 7" Vinyl
- 10" Vinyl
- 12" Vinyl
- CD-R
- 8cm CD
Exhaustive list
Here's an attempt at listing some/most/all (?) known/existing audio physical support, and how we map them to our own list:
Purely audio physical supports
Name | Date of creation | Rarity | Details | Map to |
Phonograph cylinder | 1877 | Very rare | Mechanical analog; "hill-and-dale" grooves, vertical stylus motion | Wax Cylinder |
Piano roll | 1883 | Very rare | Mechanical digital | Piano Roll |
Gramophone record | 1895 | Common | Mechanical analog; lateral grooves, horizontal stylus motion. The terms LP record (LP, 33, or 33-1/3 rpm record), EP, 16-2/3 rpm record (16), 45 rpm record (45), and 78 rpm record (78) refers to specific types of gramophone records | Vinyl |
Wire recording | 1898 | Rare | Analog; magnetization; no "bias" | Other |
Reel-to-Reel | 1930s | Rare | Analog; magnetization; "bias" dramatically increases linearity/fidelity | Reel-to-reel |
Vinyl record / Quad Vinyl | 1948/1957/1971 | Common | Is a simple evolution of gramophone record: Analog, with preemphasis and other equalization techniques (LP, RIAA). Lateral grooves, horizontal stylus motion. Monaural were created in 1948, then stereo vinyl came later in 1957 and Quad in 1971: analog, with preemphasis and other equalization techniques. Combination lateral/vertical stylus motion with each channel encoded 45 degrees to the vertical. | Vinyl |
4 tracks cartridge / 8 tracks cartridge / Quad 8 tracks | 1962/1965/1970 | Rare? | Analog, 1/4 inch wide tape, 3 3/4 inches/sec, endless loop cartridge. Quad: 4 Channel Stereo. | Cartridge (4/8-tracks) |
Compact cassette | 1963 | (still) common? | Analog, with bias, preemphasis, 1/8 inch wide tape, 17/8 inches/sec. 1970: introduced Dolby noise reduction. | Cassette |
Microcassette Minicassette | 1969 | Rare | Analog, 1/8 inch wide tape, mostly mono, some stereo. 2.4 cm/s or 1.2 cm/s. | Cassette |
4 tracks/8 tracks/multitracks recording | ? | Very rare? | This is not in itself a physical format (may be performed on a variety of equipments, from tape based equipment to digital equipment and hard disks). Likely to be only available in studios, as professional equipments. | Other |
Elcaset | 1976 | Rare | A short lived cassette format. | Cassette |
Compact Disc | 1982 | Widespread | PCM, Avaialble in 120mm and 80mm formats. | CD |
DAT | 1987 | Rare | DAT | |
MiniDisc | 1991 | Common | ATRAC | MiniDisc |
Digital Compact Cassette | 1992 | Very rare | DCC | |
DTS-CD a.k.a. 5.1 Music Disc | 1992 | Very rare | DTS Audio | CD |
DVD-Audio | 1999 | Rare? Common? | DVD-Audio | |
SACD | 1999 | Rare? Common? | SACD | |
SHM-CD (english) (Super High Material CD) | 2008 | Common | PCM | CD |
[[wikipedia:Blu-spec CD|Blu-spec CD] | 2008 | Common | PCM | CD |
Video and mixed physical supports
Name | Date of creation | Rarity | Details | Map to |
Betamax | 1975 | Common? | 'Dolby Stereo' cinema surround sound. | Betamax |
VHS | 197X | Common | VHS | |
Laserdisc | 1978 | Rare? | LaserDisc | |
DVD | 1997 | Widespread | DVD-Video | |
DualDisc | 2003 | Common? | An audio cd on one side (though not redbook), and a dvd on the other side | DualDisc |
USB flash drive | 2004 (as music format) | Common? | USB Flash Drive | |
HD-DVD | 2005 | Rare? | HD-DVD | |
Blu-ray | 2006 | Common | Blu-ray | |
VinylDisc | 2007 | Rare? | It is made from two fused layers; the silver layer contains the digital information (either in CD or DVD format) and the upper layer has a record groove, meaning it can be played on any record-player. | Other? DualDisc? |
slotMusic | 2008 | Common? | slotMusic is a type of microSD memory card developed by SanDisk preloaded with music in DRM-free MP3 format and other content. The current selection of songs comes from EMI Music, Sony BMG, Universal Music Group, and Warner Music Group. | slotMusic |
SD card | ? | ? | Any type of SD card can be used for music. If slotMusic is just a branded form of SD card, then perhaps that should just be renamed. | Other? Digital? |
(*) Rarity is just a rough indication of availability as consumer products - values are: "Very Rare", "Rare", "Common", "Widespread"
Partial list of digital audio formats
- 1985 Audio Interchange File Format (AIFF)
- 1985 Sound Designer (by Digidesign)
- 1992 WAVEform (WAV)
- 1992 Dolby Digital surround cinema sound (AC-3)
- 1992 Adaptive Transform Acoustic Coding (ATRAC)
- 1993 Digital Theatre System (DTS)
- 1993 Sony Dynamic Digital Sound (SDDS)
- 1995 MP3
- 1999 Windows Media Audio (WMA)
- 1999 The True Audio Lossless Codec (TTA)
- 2000 Free Lossless Audio Codec (FLAC)
- 2001 Advanced audio coding (AAC)
- 2002 Ogg Vorbis
- 2004 Apple Lossless (ALE or ALAC)
More information
- The original ticket that led to our implementation is 2565
- Mailing list discussion is here
- Wikipedia has a list of Audio Formats