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Depending how much of an audiophile you are will depend if you want to do that or not, mp3 files are one of the larger file types for music, you could convert them to .wav and that would reduce the file size but with reduction of size comes loss of sound clarity and depth.

Lossy compression - Wikipedia, the free encyclopedia

And

Lossless data compression - Wikipedia, the free encyclopedia



Enjoy
NO!! that is exactly backwards. A wave files is about 10mbs for every 1 minute of music. A mp3 file (at 128kbps) is 1mb for every 1 minute of music.

Wave files (.wav) will not make you songs smaller, it'll make 'em bigger, in order to drop the size of an mp3, you can use the program I posted earlier, find another, or burn it, then rerip it at a lower bit rate. The Bit rate is what matters for size (esp. on mp3 files) about 96-128kbs is where i keep most of my files, and it's about 1mb = 1 minute of music. Wave is an uncompressed audio format, MP3 is a compressed (with a nifty algorithm to boot) audio format.

Moral of the Story: You have to make a trade off, quality or space, if you're willing to sacrifice quality, go ahead and re-encode them. Same thing is true of movies (except resolution also comes into play along with bit rate)
 
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^ With movies though, surely a lower resolution wouldnt make a difference because the screen is only a few inches compared to the 30+ inches you would normally watch it on?

The resolution of the screen has nothing to do with the file size. The video player will automatically play at the resolution of you screen on your phone. The video file will still have the same original resolution, just compressed down...


For example (all calculations are simplified, don't fret, they're not 100% on, only an example), 1080p (1920x1080 resolution) has 2,073,600 pixels. Now, let's say that each pixel is represented by 1 bit. That would be 253kbs/frame, NTCS (because i'm from America :) ) runs at 29.97 (changed to 30 for ease of calculations) which would mean every second would be approx. 7mbs, every minute approx. 445mbs, every hour 25gbs,

Now if we drop the resolution down the resolution of the that of the xperia play, (854x480) you only have 409,920 pixels, which means each frame would be 50kilobytes, every minute 2.9mbs, every hour 175megabytes.

This is just a (very) rough example of what uncompressed video at 1 bit a pixel would be. With compression, and color added in it gets a whole lot more complicated.

That answer your questions?
 
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