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Erasing a Rewritable CD (CD-RW)

So, I have a few rewritable disks that I like to use to burn my music to - mainly because they are in fact "rewritable." However, now that I'm using iTunes to manage my music, I don't know (a) how to record the music on disk so that it plays AND it can be erased later, and (b) how to erase the music at all. My rewritable disks don't serve much of a purpose if I can't "rewrite." If someone could help me out, or at least let me know if this is even possible or not, it would be MUCH appreciated!

Mine, Windows XP

Posted on Nov 21, 2008 7:49 AM

Reply
18 replies

Dec 4, 2008 1:46 PM in response to Chris CA

Wow, big can of worms. Taking it one at a time.

Formatting a CDRW will render it unreadable in iTunes. This is because formatting it sets it up as a Windows system disc suitable for data only and readable by Windows only. Always "erase" never "format".

As a rule whenever I buy songs, the very first thing I do with them (right after playing them to make sure they downloaded OK) is BURN'EM Once they are on a CD (or CDRW) I rip them into mp3s and ditch the m4p files. That way I can do whatever I want with the music I bought. I hate DRM, and I hate someone else telling me what I can and can't do or how many times with something I _paid good money for_, like a $40 box set of 6 discs. I use about a dozen different programs with my music, and m4p is only for use in iTunes, so I convert everything to mp3. The it can go on my mp3 player (not an iPod), to my car stereo through the USB port, from my PC to my Mac and vice-versa, or wherever.

Dec 5, 2008 6:59 PM in response to Chris CA

I've never noticed any depreciation in sound quality by taking a download, burning it and then ripping it into the same bit rate it was from the download. It was a 128kbps file, and when I ripped it it was still a 128kbps file.

If I take a cup of water and freeze it, then thaw it out again, is it something other than water?

Burning a purchased download to a CD converts the data file from a 128kbps mp3 to a 44100kbps aiff file which is exactly how it would be if I purchased the CD retail. Ripping it back onto the HD simply reverses the process. All it takes away is waht was "put back in" when it was burned.

Dec 5, 2008 7:20 PM in response to Chris CA

As proof of the above post, I have 23,000 songs that were ripped from a cassette tape collection of over 1400 tapes. I use Roxio CD SpinDoctor to 'clean them up' which only works with 44.1kbps aiff files, so I have to run the mp3s through SoundConverter first, then I can remove the hiss, and enhance the sound quality where necessary in CD SpinDoctor, then convert the filtered aiff back to mp3 at the same bit rate. And it sounds just fine, actually a lot better than the hissing tape mp3 did. I've done just over 8400 of these so far with splendid results.

Dec 5, 2008 8:33 PM in response to MaclessInAZ

If you are satisfied with the results, great.

But there is loss of quality which is why mp3 and aac are called lossy formats.

If I take a cup of water and freeze it, then thaw it out again, is it something other than water?

It's not the same. You are freezing all the water.
Converting to a lossy format does not retain all the data. The file size is reduced by throwing away data.
When you burn it to an audio CD, the original bits are not magically returned.

Burning a purchased download to a CD converts the data file from a 128kbps mp3 to a 44100kbps aiff file which is exactly how it would be if I purchased the CD retail

It may have the same amount of info but it is not even close to the same info.

Ripping it back onto the HD simply reverses the process

Sort of. It puts all the info from the mp3 back onto the CD but you have already thrown away when you converted to mp3 the first time.

All it takes away is waht was "put back in" when it was burned.

No it doesn't because there is nothing to tell the RIPper what was put back in.

RIP an audio CD to mp3 or AAC at 32 kbps and see if you can hear the difference between the CD and the RIP'd file.
Then burn that file back to an audio CD. According to your post, it will now sound exactly like the original CD.

Every time a file is converted from anything to a lossy format, data is thrown away.

Dec 5, 2008 11:14 PM in response to Chris CA

32kbps? You MUST be joking! I have "old time radio shows" I wouldn't listen to at that rate. ALL of my cassettes were ripped with WireTap Pro (in 2005 - Before Wiretap Studio) and I did them at 169. I wanted to allow for some loss when I cleaned them up, and I could save the final copy at 128. I'm playing my files through a $120 Philips 5.1 system Off a Sound Blaster Live 24 bit external card, and they sound as good as or better than CDs I've bought that were burned in a plant somewhere from a second or third generation gold master.
I could see if I was ripping and burning and re-ripping about six or seven times where the loss would be discernible, but one time? Honestly, I'm not that particular. Besides, I listen to most of my music in my 1970 VW Beetle. I'd need about $3000 worth of sound matting, and fiberglass to drown out the noise from the car to be able to pick apart impurities in my CDs.

Erasing a Rewritable CD (CD-RW)

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