how many typical mp3`s can be saved

It depends on the compression ratio used to create the MP3.
The "reference" number is 10 hours worth of MP3's on a 650MB CD-R.

You loose 50 to 100 MB on a CD-RW compared to a CD-R. So figure 8 1/2 hours on a CD-RW.

Looking at some of my sons MP3 files, they vary from 1MB to 10MB. So lets take 4MB as the average.
580MB (free space on an RW disk) divided by 4MB gives us 145 MP3 files on a CD-RW disk.

NOTE CD-RW disks are NOT archival in nature.
Back up your files onto at least 2 different CD-RW disks before deleting them from the hard drive.

The simplest way to back up your MP3 files onto a CD-RW, is to use Windows Explorer (or a similar file manager) and just drag the files from the folder on the hard drive to the desired folder on the formated CD-RW disk.

Alternately, you can use the CD buring software, and create a CD with the MP3 files grouped as you want.

Chas

This really depends on the quality and length of the MP3s. A few high quality concertos may fill a whole CD...but you can put a lot of 3 minute pop songs on there.

Looking over my MP3 collection, most average 3-5 MB in size so you should be ableto store 150-200 per CD if your files run similar to mine. I follow this same practice (burning them to CD). I also back them up to a tape drive just in case...

Good Luck and have fun!

Generally speaking an mp3 will comsume one megabyte of disk space for every one minute of music. this is the best ratio I have found to go by. A wav file, or uncompressed sound file, take approx. 10 megs of diskspace per minute of sound. That's why a 700 meg data cd will hold approx 70 minutes of music. Since that is the case you can bet on getting about 700 minutes worth of mp3's on a cd. the average mp3 taking up around 4 minutes of audio, meaning 4 megs of info you would be able to fit approx 175 of your mp3's per disk assuming you have 700 meg disks. easiest way to save them is burn them to the disk like you would any other data disk. You may want to do a little bit of organization to help you find things easier but that is totally up to you.

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