點解將個file壓縮做rar 個大細都冇變過 或者變化唔大
如題 有冇人教教我 本身file 己經係高壓縮. 或者壓縮唔到 圖片格式檔壓縮左=冇壓縮 試下7zip~(最多都係少咗幾MB-十幾MB 度） Movie, Pictures, Music, generally cannot be compress.There will be lost and damage from original flies.
MP3, JPG, MPeg ..etc are already compressed files. every bit is needed make them playable.
BMP, some AVI and Wav are uncompressed, so it can be pack to smaller size.(with loss)
file of Text and code is more effective for compression
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