Quote Originally Posted by Vaughn View Post
They can be developed together, but the times give in the Massive Development Chart:

http://www.digitaltruth.com/devchart.php

are different for Tmax and Delta100 -- at ASA100 in D-76 1:1, 12 min and 11 min respectively. I think it would be wise to develop them separately, determine the best times for each, then decide if you want to cut corners by developing them together.
What he said

From the OP's perspective, if he/she does develop the two together, he/she only gains experience with what happens when the two are developed together (likely a relatively rare event) and not with what happens when the films are developed separately.

And again from the OP's perspective, it may be that the most valuable benefit he/she will gain from processing this film is knowledge and experience (rather than the shots themselves).