Here are some comparison of size differences of various compression formats when used to compress .cin and .dpx files for transferring over a relatively slow bandwidth link such as that present in Thailand.
| Format | Size (KB) |
| paq8o | 45,127 |
| 7z (ppmd) | 52,626 |
| tar (bz2) | 56,760 |
| 7z (lzma) | 58,966 |
| zipx | 61,448 |
| tar (uncompressed) | 97,231 |
paq8o is the clear winner, but it took several days which defeats the purpose. PPMd is the follow up but also took several hours to perform the compression. Bzip2 seems to have the best compression to time ratio and will be most optimal for compressing these files for transferring to / from clients.
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