Ni-Cd or Ni-MH

i was wondering wich rechargable batts are better....?

It all depends

It all depends from what type of application you are gone to use them.

ex.
on RC models they use NI-CD which have a fast discharge rate, i mean than they let out all the current they have in a short range off time, so they are good if you have to boost much current from them.
The Ni-CD don't have a long durabilty of the charge (all at once ) and you MUST discharge them completely before recharging them other wise they wont last long.

Ni-Mh instead have a more steadyo utput of the current, have a low dispersion so you don't nead to charge them so often and you may charge them almost at any point of the battery level.

so i guess that for my cd-player i can use NI-MH batts...
thanks