[ale] Changing ID3 APIC tag, anyone know...

[lists at serioustechnology.com (Geoffrey)]

Jeff Lightner wrote:
> I'm assuming he meant "binary" as opposed to "text".
> 
> So far as I know you COULD use sed on a "binary" file but if it includes
> internal checksums or checksum bits doing such a change might cause
> issues.
> 
> For real fun you could try doing an od of files and modify them that
> way.  I used to do a hex edit of some things in DOS with Norton
> Utilities back in the dawn of the PC age.

vi -b

I have edited binary executables with this.  Generally to modify text 
strings in the code.

Write a 'hello world' program in c, compile it, then edit the executable 
with 'vi -b' and change it to 'Hello World.'

-- 
Until later, Geoffrey

Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety.
  - Benjamin Franklin