dds and image files question(+ fsb FMOD's)

[elit]

Greetings, since now I think it is becoming increasingly necessary to repack games by extracting its resource packs and tools like ztool are becoming less compatible with new games anyway(at least thats what it looks to me after recent testing), I was wondering what is the current situation regarding .dds and certain image files - specifically .tga, .png and .bmp compression. What compressors are currently most recommended?

I know there is MSC for .dds and .bmp files but have read various opinions on it. There is by the way fixed bmf2.01 tool:
https://encode.ru/threads/2838-BMF-2...?highlight=bmf
Then there is also FLIF...

Are any of these tools worth it and better than basic srep+lzma? How does default FreeArc's .bmp optimization compare to custom tools? I tried yesterday to make desktop screenshot in various formats and then to compress it with arc. Without compression .png had I think around 2.2mb, .bmp almost 5mb and .tga also around 2mb. But arc compressed .tga and .png to around 1.3-1.6mb and .bmp to 1.09mb! This has bring me to think and making new research. I am also extra curious about .dds files compression because games tend to have these a lot.

Also since .bmp's compress so well, it may be a good idea to convert other formats(png, tga) to bmp/flif and back? Anyway so far I narrowed it to MSC(+bmf v2.01) and/or FLIF. I may do another "research" just as I did with LZMA and freearc before but its time consuming and maybe someone here already knows better...

Lastly, I like to know if FMOD's "banks" and .fsb files are able to (re)compress or if its already done deal like video files(considering keeping it lossless). And whether there are tools to extract, re-compress lossy and re-inject back as well.

Thanks