How many minutes of WHAT, exactly? A minute of sound, stored as MP3, uses up about 1 MB - but the amount of space per minute can vary widely, depending on the quality of the recording. A single minute of video, in high quality, will take up several MB - but once again, exactly how much will depend on the quality of the recording.
It depends on the quality.
None. The units are incompatible.
There is no standard conversion between minutes and megabytes. For a fairly high-quality MP3 file, you can estimate about one minute per megabyte. For low, but still acceptable, quality, you can get more. For instance, the German courses from Deutsche Welle have about 4-5 minutes for each megabyte. For even a low-quality movie you can expect several megabytes for every minute.
If you mean in a music file, or other sound file, it varies widely, depending on the quality of the music. A good quality MP3 uses about 1 MB for every minute of sound, but you can still get an acceptable quality for a fraction of a MB/minute. Anyway, 1 MB/minute seems to be typical.
I will assume you want to store music, perhaps in MP3 or Ogg Vorbis format. In fairly high quality, every minute of music takes about 1 MB. (But you can store several minutes of music per MB in lower, but still not too distorted, quality; on the other hand, you can have VERY high quality, with several MB per minutes). The estimate of 1 MB per minute would give you 3000 minutes, or about 50 hours (2 days and nights) for the 3 GB.If you want to store movies, the situation is different. A minute of fairly LOW quality video may also take a MB, for a more acceptable, but not very high, quality, you need several MB per minute.
1 MB = 1024 KB, so 2.56 MB is obviously much bigger than 653 KB.
9 minutes smartasses
how many minutes to make 1mb
7 HOURS
app. 25
It depends on the quality.
around 300...
You are comparing two entirely unrelated units of measure. You might as well ask how many days there are in PI for all the sense it makes to compare minutes to megabytes.
3:11 sec.
None. The units are incompatible.
A 650 MB CD-R can hold 74 minutes of music. A 700 MB CD-R can hold 80 minutes of music.
On a modern 100Mb (million bits/second) broadband connection a megabyte transfers in 80 milliseconds (1.333E-3 minutes).