ZiNgA BuRgA Wrote:As said, depends on compressability, but 131MB to 6MB is quite astounding for a general PSP ISO, especially since media (music/FMVs) generally takes up the most space and are often compressed. Perhaps the game has a fair bit of padding.
ProperBritish Wrote:the first one could compress to 01290, amirite?
hypothetically speaking
Depends what scheme you're using. For deflate (most popular compression algo, used in ZIP/zlib/gzip and I believe RAR is based on it) there's two stages - a dictionary compress and then an entropy encode.
You'd get something like what you said above with the dictionary phase (it just detects duplicate stuff). The entropy encode phase would then reduce the above to a few bits.
From what I've read, 7-zip with LZMA2 (v9.xx) generally beats RAR consistently. Previously, I think RAR was slightly better at handling uncompressed media (eg WAV, BMP etc) than LZMA.
I think PAQ8px is generally considered the best compressor. KGB is based off PAQ6 or something like that, right?
I almost understand >_> I do got the part on how 7-zip is better. So thanks.
Speaking of compression...
Would anyone know why, all the sudden compressing or decompressing files above 250 MB crashes my PC?
This was never an issue before but now is...
I use both 7zip & winrar... same results...
Something wrong with Windows / viruses etc. Neither of those applications should even have the ability to crash your computer.
ZiNgA BuRgA Wrote:Something wrong with Windows / viruses etc. Neither of those applications should even have the ability to crash your computer.
I don't have any viruses, windows should be ok,...
IDK for sure,...I will go through & double check but...
My PC crashes now when:
- I stream a movie for a long time
- I decompress/compress large files
- convert formats on any movies
- Or burn a movie to a DVD Disc
These all seem to take lots of resources on my PC, or something. When I try to do these things, My damn fan sounds like a dang jet engine in my living room. It is so loud & this recently started the last month or so...It is like my PC is running hot/hard & too much causes it to crash. I don't understand.
Overheating. Open it up and vacuum out all the fans and heatsinks. If that doesn't cure it replace the thermal goo between the CPU and it's heatsink. If that doesn't work run a RAM tester like memtest86+. You may have some dodgy ram. All those tasks are pretty memory intensive. (As well as CPU intensive. (Streaming is more RAM than CPU intensive.))