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Chris HoffmanEditor-in-Chief

Chris Hoffman is Editor-in-Chief of How-To Geek. He"s created about modern technology for end a decade and also was a PCWorld columnist for 2 years. Chris has actually written for The brand-new York Times, to be interviewed together a an innovation expert ~ above TV stations like Miami"s NBC 6, and had his occupational covered by news outlets choose the BBC. Because 2011, Chris has actually written over 2,000 short articles that have been read almost one exchange rate times---and that"s just right here at How-To Geek. Read more...

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Sep 6, 2017, 10:24 am EDT| 3 min read
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When burn a CD, you can either burn it together a data disc or one audio CD. A data CD can hold approximately 700 MB, if an audio CD can hold 80 minutes of sound. If you have 200 MB that MP3 records that add up come three hours that music, you have the right to still only burn 80 minutes to the disc. Why is that?


What Happens once You Burn a Data CD

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At the moment of burning, you choose to burn one of two people a data CD or audio CD. Your disc burning regimen burns the disc in a different format depending on the option you choose.

Data CDs are an easy to understand. Once you burn a data CD comprise MP3s or any kind of other form of file, your computer system creates a disc comprise those files. The documents on the disc are the same size as they space on your computer. So, if you have 200 MB of MP3s you desire to burn come a 700 MB disc, you can place the MP3 files and up come 500 MB of other data documents on the disc.

Why burn an Audio CD is Different

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Burning an audio CD is different. Audio CDs space not the very same thing together data CDs, and they do not save on computer MP3 files.

An audio CD has audio data in CDDA (Compact disc Digital Audio) format. This is uncompressed audio data, and it calls for a lot an ext space 보다 MP3 files, AAC files, or any type of other kind of compressed audio file. A minute the CDDA audio always takes up the same amount of room on the disc, i m sorry is why you have the right to only burn a maximum number of minutes come a disc. Even if the song you’re burning room in MP3 format, they have to be convert to the larger CDDA layout if you want the key to job-related in a regular CD player.

RELATED: How to Rip Audio CDs come Your pc or Mac

It walk the other direction, too. Audio CDs you buy in stores can only have actually a maximum of around 80 minutes of sound, but if friend rip an album to MP3 or AAC format, it will certainly use much less than 700 MB the storage room on her PC. In stimulate to convert CDDA come MP3, your computer system uses a “lossy” compression process, whereby some data is thrown out. Otherwise, your ripped music arsenal would take up one awful lot of space!

Burning MP3s come Audio CDs Isn’t Ideal

If friend burn an MP3 come an audio CD, the MP3s will broaden to take up the exact same amount of room as the original audio data. However, the resulting disc will have actually inferior audio high quality when contrasted to the initial audio CD.

When friend rip music indigenous a CD come an MP3 file or AAC file, you’re not getting all the original audio data. Few of the data is discarded to ensure the MP3s have actually a small file size. The result MP3 documents won’t have to sound as an excellent as the original disc. How great they’ll sound depends on the encoder girlfriend use and also its bitrate settings. Her headphones and also speakers are additionally a factor: that will be less complicated to tell the distinction with higher-quality, an ext expensive headphones.

This is why audio geeks prefer lossless formats like FLAC, which carry out some compression however keep all the original audio data. If friend burn lossless papers like FLAC come a disc, you’ll have an audio CD v sound quality good together the original.

When friend burn lossy documents like MP3s come an audio CD, the MP3s will certainly be convert to CDDA audio, which takes up an ext space ~ above disc. However all the audio data the was discarded when the MP3s were developed can’t it is in restored.

Of course, if you’re already happily listening to the MP3 files, an audio CD you burn native those records won’t sound worse any type of worse than the MP3s. Yet it won’t have to sound as an excellent as the initial audio disc, either.

Some disc Players support MP3 CDs

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There’s a deteriorate available, too. Some CD players have the right to read both conventional audio CDs and “MP3 CDs”.


An MP3 CD is specifically what it sounds like. Fairly than converting the MP3 records to CDDA while burn an audio CD, girlfriend burn the MP3 documents to a data CD. The key player climate reads the CD, lots the MP3 files, and plays them just like a computer system would.

To uncover out if her disc player supports MP3 CDs, look because that an “MP3” logo on it. Girlfriend can additionally read that instruction manual or inspect its specifications, and also you should see MP3 support noted if it has it.

To produce an MP3 CD, you merely burn a data disc and fill it v up to 700 MB of audio files. You might want come organize the MP3s right into folders therefore they’re less complicated to navigate with on her disc player. Part applications, favor iTunes, have an “MP3 CD” option, however you can achieve the exact same thing by burn the MP3 files to a data disc with any kind of disc-burning tool.

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These CDs won’t work-related on any old CD player, so this isn’t the most compatible solution. But, if you use a CD player that supports MP3 CDs—maybe your auto stereo does, for example—you can burn MP3 CDs rather of audio CDs to fit much more music top top a disc.

Image Credit: Wikimedia Commons, Flickr


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Chris HoffmanChris Hoffman is Editor-in-Chief that How-To Geek. He"s created about technology for over a decade and was a PCWorld columnist for 2 years. Chris has written for The brand-new York Times, been interviewed together a an innovation expert top top TV stations favor Miami"s NBC 6, and also had his work covered by news outlets like the BBC. Because 2011, Chris has written over 2,000 articles that have been read nearly one billion times---and that"s just below at How-To Geek. Read complete Bio »