I've been in contact with Dr Andrew Wright the author and copyright holder of the Sam ROM,
and I have been granted permission to 'burn' Sam ROM chips.
If you have a very (very!) early Sam Coupe with either a version 1 or 2 ROM then
it's really, really advisable to upgrade to ROM3
to ensure no problems with any Sam software.
To test which version you is fitted in your Sam type:
PRINT (PEEK 15) / 10