How many hours in gigabite?

Answer 1

It depends a lot, hours of what, and at what quality. For a typical MP3 file (music or other sounds), I estimate 1 MB per minute, so 1 GB would give you a thousand minutes (about 17 hours). However, the space used by sound files, per minute, can vary a lot; I have seen MP3 files that used about 0.2 MB/minute, and whose quality was still quite acceptable. On the other hand, higher qualities (higher than 1 MB/minute) are possible as well.