martinus wrote:
> ops, I should have read your first post with more attention :-)

Well, depending on the situation, I now will reconsider storing the GUID 
value as 16-byte string as well as Bignum. And perhaps optionally do 
some 'memoization' too. It's basically the traditional space vs 
computation trade-off.

> forget the @val representation thing, but the from_base36 method might
> still help a bit.
> 
> Martin

Thanks to all responses.

Regards,
dave