Position Keyframe Recorder

hey all

i got a problem that is that i have an ""number"" of objects that have a motion with many key-frames, now i wanna set a the same number of key-frames with a fixed positions for all of my objects at the same time, example:

i have a 100 object each has 600 k-frame, now i want a 600 key frame with position for example <0,0,0> to be added on each of the 100 object's motion frames and at the same time, so is there any script to do this??

i would be very thankful if any1 replied...