1.1A file in MP3 format: technicalities aside, ripping your own MP3s is easy [as modifier]: an MP3 file
More example sentences
- The answer: just turn the whole thing into one MP3.
- Someone Googled me this morning looking for this very MP3.
- You won't find videos, MP3s, or other flashy media on the site's bare-bones profile pages.
1990s: from MPEG + Audio Layer-3.
Definition of MP3 in:
- The British & World English dictionary