CD-R is a type of CD that is purchased blank and used to copy information onto, in the case of in car audio systems the CD-R discs are used to copy songs. These songs can be straight copies of another CD or they can be MP3 files, for the MP3 files you will need an in car audio system that supports MP3 tracks. CD-R discs are very cheap to buy so are great for in car use, you can use them to store your MP3's or you can copy CD's so that you don't have to keep changing CD's.

There is also another type of CD-R disc which is called the CD-RW disc, standard CD-R discs can only be copied onto once but CD-RW discs can be used to copy songs over and over again so are great if you wish to change the songs on the CD. CD-RW do cost more but they offer good value as they can be used more than once, if you are just copying a CD and wish to keep the copy then CD-R is better though as they are cheaper.

So if you want to play CD-R CD's in the car audio system you are buying then you need to make sure that it supports CD-R discs, most car audio systems that support CD-R also support CD-RW discs but make sure if you plan on using them. If you are looking to buy an in car audio system online then have a look at the selection below that all support CD-R discs are are from lots of top UK shops with the cheapest CD players listed first:

	Name	Price
	CD Car Stereo with AM/FM Tuner ( CD Headunit ) , &, ·, 12v, 7w, adjusted, amplifier, audio, autoloading, bass, beat, car, carry, case, cassette, cd, cdr, cdrw, cds, channels, chassis, check, classic, dc, detachable, discs·, ease, electric, enhance, eq, external, faceplate, fm/am, high,... Shop: Maplin	£39.99
	Sendai CD688 CD Player , audio/car, car, cassette, cd, cdr/rw, halfords, player, players,... Shop: Halfords	£39.99
	Acoustic Solutions ICS30 MP3 CD Radio. , 24, 30, argos, balance, bands, bass, bullet, car, carry, case, cd, cdr/cdrw, clock, connection, control, detachable, display, equalizer, fader, fascia, fm/mw, functions, iso, lcd, mp3, play, playback, pll, presets, radios, random, rds/eon, repeat, rms,... Shop: Argos	£44.99
	Goodmans GCE2813PLL In Car CD Player or Radio , &bull, 24studio, 40w, 4x, antishock, band, cd, cd/cdr/cdrw, classic, d16cm, flat, fold, h5, leisure, load, mp3, mw/fm, panel, player, players, pll, pop, power, radio, rms, rock, slot, system, w178... Shop: 24Studio	£44.99
	Goodmans GCE2813PLL In Car CD Player and Radio , &, &bull, 24studio, 40w, 4x, antishock, band, car, cd, cd/cdr/cdrw, classic, d16cm, flat, fold, h5, load, mw/fm, panel, player, pll, pop, power, radio, rms, rock, slot, sound, system, vision, w178, x1... Shop: 24Studio	£49.99
	CD MP3 Car Stereo ( CD MP3 Headunit ) , &, ·, 10, 30, 40w, albums, appropriate, audio, bass, burning, capability, car, cd, cdburner, cdr, cdrw, cds, characters, classical, customised, electronic, eq, etc·, faders, flat, fm/am, front/rear, head, id3, incar, label, left/right, ma... Shop: Maplin	£49.99
	Goodmans GCE7355MP3 In Car CD Player With MP3 , &, &bull, 2¼, 20w, 24studio, 30, 4x, 7¼, antitheft, car, carry, case, cd, cd/cdr, clock, controls, d19cm, fader, front, h58, id3, mp3cd, panel, plays, power, presets, removable, rms, sound, station, system, ta, tag, tp, traffic, vision, w... Shop: 24Studio	£49.99
	Goodmans GCE2813PLL In Car CD Player and Radio , &, &bull, 24studio, 40w, 4x, antishock, band, cd, cd/cdr/cdrw, classic, d16cm, flat, fold, h5, incar, load, mw/fm, panel, player, pll, pop, power, radio, rms, rock, slot, sound, system, vision, w178... Shop: 24Studio	£49.99
	CD MP3 Car Stereo ( CD MP3 Head Unit ) , &, ·, 18, 24, 4x7w·, album, artist, audio, auxillary, backlit, blue, buttons, car, cd, cdr, cdrw, classic, clear, connector, detachable, dsp, effects, flat, fm, front, id·, id3, illuminated, incar, input, iso, lcd, line, maplin, mp3... Shop: Maplin	£49.99
	Acoustic Solutions ICS60 MP3 CD Radio. , 24, 25, argos, balance, bands, bass, bullet, car, carry, case, cd, cdr/cdrw, clock, connection, control, detachable, display, equalizer, fader, fascia, fm/mw, functionspll, input, iso, lcd, mmc, mp3, play, playback, presets, radio, radios, random, rds/e... Shop: Argos	£49.99
	Sony CDXGT121 CD Radio. , 22, 30, argos, aux, balance, bands, bass, car, cd, cdr/cdrw, clock, connection, control, detachable, digital, display, equalizer, fader, fascia, fm/mw/lw, front, functions, iso, lcd, mp3, outs, pause, playback, pre, presets, radios, rds/eon, repeat, rms... Shop: Argos	£59.99
	Pioneer DEH1000E CD Radio. , 18, 35, argos, aux, balance, bass, car, carry, case, cd, cdr/cdrw, connection, control, detachable, digital, display, eeq, equalizer, fader, fascia, fm/mw/lw/am, front, functions, input, iso, lcd, mute, play, playback, pre, presets, radios, random, rca,... Shop: Argos	£59.99
	Wharfedale WH170 iPod CD Radio. , 20, 24, argos, balance, bands, bass, bullet, car, carry, case, cd, cdr/cdrw, clock, connection, control, detachable, display, equalizer, fader, fascia, fm/mw, functions, iso, lcd, mp3, play, playback, pll, presets, radios, random, rds/eon, repeat, rms,... Shop: Argos	£59.99
	CD MP3 Car Stereo with USB and SD / MMC Interface ( MP3 USB/SD Head Unit ) , &, ·, 18, 24, 4x40w·, audio, auxillary, backlit, blue, buttons, car, cd, cdr, cdrw, classic, clear, connector, detachable, dsp, effects, flash, flat, fm, front, id·, id3, illuminated, incar, input, iso, lcd, line, maplin, mp3, mw&mi... Shop: Maplin	£69.99
	Enabled CD MP3 Car Stereo with USB and SD/MMC Interface ( Bluetooth Head Unit ) , &, ·, 18, 24, 4x40w·, audio, backlit, blue, buttons, calls, car, cd, cdr, cdrw, class, classis, clear, connector, detachable, dsp, effect, flash, flat, fm, id·, id3, illuminated, incar, iso, lcd, line, maplin, mobile, mp3, mw·... Shop: Maplin	£79.99
	Sony CDXGT220 MP3/CD Radio. , 22, 30, argos, aux, balance, bands, bass, car, cd, cdr/cdrw/mp3, clock, connection, control, detachable, digital, display, encoder, equalizer, fader, fascia, fm/mw/lw, front, functions, iso, lcd, outs, pause, playback, pre, presets, radios, rds/eon, rep... Shop: Argos	£79.99
	Wharfedale WH180 Bluetooth CD Radio. , 20, 24, argos, balance, bands, bass, bullet, car, carry, case, cd, cdr/cdrw, clock, connection, control, detachable, display, dot, equalizer, fader, fascia, fm/mw, functions, iso, matrix, mp3, play, playback, pll, port, presets, radios, random, rds/eon,... Shop: Argos	£79.99
	Roadstar CD240MPR512 In Car CD Tuner With Removable MP3 Player , &, &bull, 10, 24studio, 3¾, 40w, 512mb, 7"e, accessories, carry, case, cd/cdr/cdrw, computers, connector, d18cm, disc, fascia, fm/mw, front, h97, headphones, id3, iso, mp3/wma, player, pll, power, rds, recorder, removable, tagging, tuner, v... Shop: 24Studio	£79.99
	Roadstar CD240MPR512 In Car CD Tuner With Removable MP3 Player , &bull, 10, 24studio, 3¾, 40w, 4x, 512mb, 7"e, carry, case, cd/cdr/cdrw, connector, d18cm, digital, disc, fascia, fm/mw, front, h97, headphones, id3, iso, mp3/wma, player, pll, power, rds, receivers, recorder, removable, tagging, tuner, voice,... Shop: 24Studio	£89.99
	JVC KDG333 MP3/CD. , 24, 50, analogue, argos, balance, band, bands, bass, car, carry, case, cd, cdr/cdrw, clock, connection, control, detachable, display, equalizer, fader, fascia, fm/mw/lw, functions, iso, lcd, max, mp3/wma, mute, playback, pre, presets, radios, random, rd... Shop: Argos	£99.99
	Sony CDXS2250S / In-Car MP3 CD Tuner , 247, 4x, 50w, 50x178x176mm, band, cd, cdr/rw, codec, detachable, dims, drives, electrical, eq3, equalizer, front, hwd, id3, multi, multimedia, panel, playback, preout, rdseon, rearsub, smosfet, switchable, tag, text, tuner... Shop: 247 Electrical	£102.55
	Sony CDXGT420U USB CD Radio. , 26, 30, argos, aux, balance, bands, bass, browser, car, carry, case, cd, cdr/cdrw/mp3, changer, clock, connection, control, detachable, digital, display, equalizer, fader, fascia, fm/mw/lw, front, function, functions, iso, lcd, mp3, outs, play, playback... Shop: Argos	£109.99
	Pioneer DEHP4800MP / In-Car MP3 CD Tuner , 18, 060, 247, 8x, adjuster, angle, audio, auto, bsm, cd, cdib100, cdr, cdrw, cellular, changer, connector, control, converter, d/a, degrees, digital, disc, display, eeq, electrical, enhancer, fie, filter, flexible, front, hardwired, high, hpf, illuminat... Shop: 247 Electrical	£127.98
	Sony CDXGTU620U USB CD Radio. , 26, 30, argos, aux, bands, bass, browser, car, carry, case, cd, cdr/cdrw/mp3, changer, clock, connection, control, detachable, digital, display, equalizer, fader, fascia, fm/mw/lw, front, function, functions, iso, lcd, mp3, music, outs, pause, playback,... Shop: Argos	£129.99
	Sony BT2500 Bluetooth CD/Radio. , 27, 30, a2dp, adapter, argos, audio, aux, balance, band, bass, blue, car, carry, case, cd, cdr/cdrw/mp3, clock, compatible13, connection, control, detachable, device, digital, display, equalizer, fader, fascia, fm/mw/lw, front, functions, iso, lcd, mobi... Shop: Argos	£129.99
	Pioneer DEH4000UB USB CD Radio. , 24, 35, argos, aux, balance, bass, car, carry, case, cd, cdr/cdrw, connection, control, detachable, digital, display, eeq, equalizer, fader, fascia, fm/mw/lw/am, functions, id3, input, iso, lcd, mute, play, playback, port, pre, presets, radios, random,... Shop: Argos	£129.99
	Sony CDXGT828 USB CD Radio. , 26, 30, argos, balance, bands, bass, browser, car, carry, case, cd, cdr/cdrw/mp3, changer, chassis, clock, connection, control, detachable, digital, display, drive, equalizer, fader, fascia, fm/mw/lw, function, functions, iso, lcd, motion, mp3, outs, pa... Shop: Argos	£149.99
	Sony CDXGT929 USB CD Radio. , 26, 30, argos, balance, bands, bass, browser, car, carry, case, cd, cdr/cdrw/mp3, changer, clock, connection, control, detachable, digital, display, enhancements, equalizer, fader, fascia, fm/mw/lw, function, functions, iso, lcd, motion, mp3, music, out... Shop: Argos	£179.99