Create a playlist. If you're wanting to burn to audio cd-r then 650 MB disk will hold 74 mins 14 secs & 700 MB disk 79 mins & 54 secs. If you want to burn mp3 disks then it depends upon their bit-rate & file size.

By creating a playlist I mean which ever audio program you're using, create a playlist & add the songs you want onto it until it reaches the length you're after.

BTW mp3 sizes vary depending upon bit-rates. They can range in size (eg: 128-320 kbps bitrate) about 1 MB per minute to over 3 MB per minute depending upon the song (most 320 kbps are less than 3 MB/min but depends upon complexity of particular music.) Different songs will compress differently when compressed as mp3's. Also, different codecs will compress a little differently to others re: quality & file size.

Is that info of any help?

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