Batch script to do bulk compression of files in the directory the .bat is placed, and output as individually bzip2 compressed files, using 7zip.
To use:
- Replace anything in [brackets], leave the "quotations"
- Run the batch file
- Watch and marvel as 7zip bzip2's your folder
Compression level quick comparisons if you want to change the -mx# line. I switched to -mx2 for faster compression with minimal compression loss. Tested on my copy of CSGO surf map surf_rolly at 439,711KB uncompressed. It is worth noting these tests were also done before I changed the dictionary size.
| Level | Output Filesize | Time |
|---|---|---|
| base | 185,897KB | 26.93s |
| mx1 | 195,086KB | ~10s |
| mx2 | 189,432KB | 12.28s |
| mx3 | 187,478KB | 18.48s |
| mx4 | 186,139KB | 22.79s |
| mx5 | 185,897KB | 26.84s |
| mx6 | 185,897KB | 27.13s |
| mx7 | 185,075KB | 45.24s |
| mx9 | 183,532KB | 1m 55s |