ssling: When DVD's became standard? Around 2005? For older games take download size (in MB) and divide by 700.
DavidOrion93: Take installed game size and divide by 1.44 meg?
While storage amounts for media are good to know, overhead of filesystem is required too... As i doubt you're using dd to direct copy a whole media's storage amount. As such floppies are almost always formatted with FAT12.
I know with resizing disks and changing how big the formatting is sector-wise you can push 1.44Mb to 2Mb or higher 'superdisks' but i never saw any in distribution nor could i get my own to do that. Which is too bad.
For 1.44Mb floppies after the Fat12 was put on, it is closer to 1.37Mb, 700Mb CD's become closer to 650Mb, and 4.3Gb DVD's are closer to 3.8Gb. Optical media also tends to include error detection codes, though how useful they are is hard to say.
Also older games you probably exclusively did zlib type compression, or zip related. Meaning the compression of current games can skew how much space the original sizes were by quite a bit vs 7zip that's used right now. And since zips tend to compress per-file, similar blocks of data won't get nearly the compression. (
And i've tried no compression on a bunch of HTML's to a zip, then zip'd that, and got better compression than just zipping the original file with higher compression options) So probably expect half again more disks, unless the data wasn't compressible very well then it won't matter.
Trooper1270: I guess it depends on whether we are talking about single sided or double side, single density or double density disks, and what capacity the disks were designed or formatted to hold...
True. But then you're getting older than 90's probably.
https://en.wikipedia.org/wiki/Floppy_disk#Sizes,_performance_and_capacity