Help with data compression for backup

[TadghsMuffins]

Hey guys - recently my storage hard drive has started to fail. I've taken all the really crucial stuff and copied it onto another drive (my SSD), but the storage drive still keeps a lot of stuff that I use and would be a pain to get again, I don't have enough space on my SSD to fit it all on uncompressed.

So how would I go about compressing the 1122GBs or so into a much much smaller size (70GBs)?

I have the hardware and time to use compressing the stuff - neither of those are particular constraints - but I've tried using 7zip to compress software and videos and I've never gotten better than a 98% compression ratio (.7z, Ultra, PPMd)

Thank you!

 

[USAFRet]

You can't squeeze 1.1TB into 70GB unless it is straight ASCII text.
$80 and buy a 2TB external drive.

 

[das_stig]

+1 buy another disk !

 

[boosted1g]

+1 buy the bigger drive. Trying to fit 1.1 TB onto 70 GB is like trying to fit a semi trailer into your file cabinet drawer.

 

[TadghsMuffins]

You can't squeeze 1.1TB into 70GB unless it is straight ASCII text.
$80 and buy a 2TB external drive.

What if I drop that down to say.. 700GB?

 

[USAFRet]

You can't squeeze 1.1TB into 70GB unless it is straight ASCII text.
$80 and buy a 2TB external drive.

What if I drop that down to say.. 700GB?

It greatly depends on what type of data is it. There is no absolute.