So I run Djing software, serato scratch live and my laptop did not come with enough HD space to fit all of my music (still need 320GB more). I'm looking for a new external HD now but I'm confused about what I will and won't need, keeping in mind wanting to get the cheapest best for what I need.
1. Will RPM's effect the way my music plays off of my software? (5400 vs 7200)
2. USB 2.0 (my lappy didn't come with a 3.0) or Firewire, will it make a difference?
the best answer would be a suggestion to what drive best suits these specific needs, also I do not know what the cache means at all. Sorry for my ignorance.