Terminology / Guide

ReferenceTerminology / Meaning
CDCompact Disc - Is the current standard for releasing albums for general sale
CDRCompact Disc (Recordable) - Used for samplers, bootlegs - where the CD has been produced by a CD Writer rather than pressed.
LPLong Play - The format for album released prior to cassettes and CD's. They were made of vinyl, used on a turntable, and spun around at 33.33 rpm's (revolutions per minutes). Sometimes referred to as 33's for that reason. They were also 12" in diameter.
12"vinyl that is 12" in diameter. All LP's were 12". Several singles were produced in 12" format also as collectables or had extended versions of songs.
SPShort Play - The format for a single released prior to cassettes and CD's. They were made of vinyl, used on a turntable, and spun around at 45 rpm's (revolutions per minutes). Most commonly referred to as 45's rather than SP's. They were also 7" in diameter. Also commonly referred to as 7" singles. Rarely actually referred to as SP's.
45'sMost common name for Short Play (SP)
7"Common name for Short Play (SP)
EPExtended Play - The term given for either a 7" or 12" that either wasn't a full album, or a single. It was a few songs only
PDPicture Disc - The term given for either a 7" or 12" that was printed with a picture on the vinyl rather than the standard black or coloured vinyl
cassettesCassettes (tapes) - were the format for album releases in late 70's and 80's. Prior to CD's. It made music portable. As magnetic tape, they did not normally last long.
tapesCassettes
Reel-to-ReelEarly form of magnetic tape, often seen in old detective movies ... prior to cassette tapes.
8-trackEarly form of magnetic tape. Offered hifi sound
VHSVideo Home System - magnetic tape used to distribute/record video format. Quality was bad, but allowed movies etc into the home.
VCDVideo Compact Disc - was a CD sized disc holding video & audio. Quality was like VHS tapes. Prior to DVD.
LDLaser Disc - These were 12" sized CD's - used to hold digital data - as is video and sound. The fore-runner to DVD's.
DVDDigital Video Disc - The format for SD (Standard Definition) Video format.
BlurayThe format for HD (High Definition) Video format.
HD-DVDAnother format for HD (High Definition) Video format. It was an alternative - but gradually disappeared.
jewel caseterm given to the plastic casing that most CDs were packaged/sold in
super jewel caseCD case that had rounded corners and the artwork had the corners removed to fit the old shaped case
DigipakCD's packaged in cardboard casing rather than the jewel case
slip coverFor CDs. CD is packaged in basic cardboard sleeve and nothing else. Similar to how SPs (45's) were sold
BootlegUnofficial recording. Normally a collection of songs or a concert that never made it as an official release
monoprior to stereo. Play something recorded in mono, and whatever came out of one speaker was identical on the other (or multiple speakers). Equivalent to AM Radio. sample singles (45's) were often sent to Radio hosts as mono - as AM radio wasn't capable of anything else
stereomono evolved into stereo. The ability to hear a variation of sound between two of more speakers. Though if had 4 speakers for example, two would play identical for one part, then two identical for alternative part.
hifistereo evolved into hifi. The ability to hear a variation of sound between two of more speakers. up to eight varying tracks could be heard (if you had eight speakers I assume)
labelfirst meaning - the printed middle of vinyl LP's or 12" or 45's
labelsecond meaning - the Record Company the Singer/Group distributed with. i.e ABBA were on the Atlantic label in the USA, Epic label in UK, RCA in NZ and Australia.
jacket / sleevefor vinyl. LP's were sold with album covers, singles came with jackets or sleeves
gatefoldWhere an album (LP) opened up (like a book). It was normally used for double Albums ( 2 x LP's)