RAR files???

[Vendeta]

Could it be possible to make a program that installs to ur flash that makes it able to run things in a RAR file and or zip file???? just noticed how much room u could sae by haveing that....

[JKKDARK]

No, there isn't :laugh:

[Vendeta]

i wasent asking if there was one i was asking if its possible to make one.... if anyone could it would be somone on dcemu lol

[bah]

What type of files are you hoping to compress?
Apart from maybe psx isos (if they contain uncompressed CD audio tracks) I can't think of what files on a psp's mstick would compress much at all.

Most emulators incorporate zip support for roms and mp3s/mp4 video arent going to shrink at all in a zip/rar archive. It would slow things down and use precious memory to extract files from the archives also.

[belialone]

for the i*os there is dax or c*o
but normal homebrew doesnt need to be compressed
it would save memstick space but it increases the cpu usage cuz you'll need to unzip or unrar the data at runtime

[Vendeta]

Well if u use a c*o then it lags more but if there wass a way to rar it (cause u can compress 600mb into 16mb with rar) we could save massive room and for music able to shrink it top half a kb would be nice too....

[jak66]

doesnt 7zip have even better compression than rar?

still, unlikely it will ever happen

[Vendeta]

Nah rar can compress like 100 mb into 1kb

[belialone]

i think it depends on the data a i*o contains how much you can compress it
already shrinked data like mp4 vids or mp3 does not have a high compression ratio

[bah]

Seriously people, using an * for 1 letter of iso or cso is not what no iso talk means.

The word by itself isnt whats not allowed, it is the entire topic of discussion. For example you can say 'isos are destroying the commercial psp game market' no problem, but not 'how can i compress my psp i*os to save memory stick space'.

Please respect the dcemu rules, even better would be to buy your games.

Now that's been said,
Zip, rar, 7zip are all lossless compression methods that gain the most where there is repetition of sets of data. Text files will compress great.
Jpeg, mp3, mp4 etc are all purpose-optimised lossy compression methods. These codecs all compress their type of data far more than zip or rar would compress a raw video stream.

Trying to compress with zip, rar, 7zip etc a file already compressed with one of these purpose-optimised compression methods will not achieve anything (well, very very close to nothing).
If zip could compress an mp3 much, then the mp3 codec wouldn't be doing a very good job would it.


Compression methods, especially lossless ones, are not some magic bullet that will compress 100s of MB of any sort of data down to 100KB. Modern image/audio/video codecs have already done a much better job at reducing their size than zip ever could.

Raw video at the psp's screens res of 480x272 32bit colour would be about 120MB per second.