Thanks dude for compressor and Beautiful installer.
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Selected ARC/DS method for Data1a-01.bin was: bpk
Selected ARC/DS method for Data1b-01.bin was: srep_new+lolz:d139:mtt1:mt8:mc1023
Overall input size: 69.72 GB
Overall output size: 54.14 GB (Ratio 77.66%)
Overall conversion time: 07:43:55
Overall conversion discs: 13 DVD5
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Selected ARC/DS method for Data.bin.001 was: xt_zlib+srep_new:m3f:d1g:a2+lolz:mt4:mtt1:d128:fba 4096:mc1023c4:dtb1
Overall input size: 69.72 GB
Overall output size: 52.52 GB (Ratio 75.34%)
Overall conversion time: 10:15:28
Overall conversion discs: 13 DVD5
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Selected ARC/DS method for Data.bin.001 was: xt_zlib+srep_new:m3f:d1g:a2+4x4:b64mb:lzma:ultra:6 4m:bt4:fb273:lc8:mc1000000
Overall input size: 69.72 GB
Overall output size: 52.86 GB (Ratio 75.83%)
Overall conversion time: 01:56:34
Overall conversion discs: 13 DVD5
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In conclusion it seems the best and fastest compression method for this game is "xt_zlib+srep+lzma".
Thanks to mausschieber and KaktoR.