ok. i've got the jist of it now.
what is happening as the optical head (ie the one that reads the disc....little blue optical lens) is making the noise. as it moves in and out it makes the whirring sound that i was hearing.
at the same time, the recording head (the one that slides along the chassis) moves along its path, but only on certain mds. some mds will spin for a while, some not at all.
does anyone know what is wrong with it? i am still getting no display.
the last error that is entered in the service mode is low battery error, and before that is a data reading error.
please help...... i don't know whats wrong