Ripping CDs to ALAC with macOS Catalina

[wgscott]

You can use the built-in unix command afhash to assess whether the SHA-1 hash is the same on a track ripped in the new OS vs. an older one.

 

If the SHA-1 hashes (checksums) are identical, then the audio is bit-identical, so most folks would take that as proof that both sound the same.

[wgscott]

No, it is an internal checksum, just like the one embedded in a FLAC file.  Try it with two copies of the same file, after chaning the metadata in one of them.

 

 

[wgscott]

On 8/7/2019 at 12:59 AM, kirkmc said:

But all it takes is a tiny bit of difference in header information for the SHA-1 to be  different. 

 

Or sometimes they wrongly assume the other person is incorrect.

 

The great thing about open forums is that we can all learn a bit from one another.