Amiga floppy image format?

[freqmax]

Is there any truly free format that can handle copyprotected discs like the IPF format does?

I did some calculations on what a floppy image format would need:
Assumption: 300 rpm, 250 kbps
Max bits per one track on one side:
250000*(60/300)     = 50000 bits/trackside

The really raw format would be to use 7bit values (due to 2% rpm tolerance) with 4 us cycle time.

Assuming a max of 100 000 pulses/trackside the discimage would be:
  (100000*7)*2*80*(1/8)*(1/1024) = 13671.875 kByte

Using the MFM demodulated data, the size becomes:
  (50000)*2*80*(1/8)*(1/1024) = 976.5625 kByte

[adolescent]

MFMWarp and WWarp can make images of copy protected disks.  But, most of the time the copy protection itself can't be preserved like the SPS tool does.

[freqmax]

What's the SPS tool..?

If the copy protection can't be preserved, will the image still work for running the application?

[adolescent]

@freqmax

The SPS (formerly known as CAPS) tool is the tool is what creates IPF files.

To answer your other question, I don't know.  I don't have a drive that's good enough to write things back to test.