help with notein and ctlin

Hi there,
I have just started working with Max, I made a patch where the playback of 10 videos are controlled with my midi keyboard.
The patch is working but the problem is that when I use "notein" and I press a note, the videos start all in the same time. If I use "ctlin" I can decide which midi control I can use ( example: ctlin 72) and assign different midi with the video. Unfortunately I dont have enough controls knobs on my midi device so I have to use the keys.
Is there any way to assign which key is controlling the video easily? I have tried using "notein + the midi number of the key I want to use" but is not filtering just the note I need.
what is the best way to assign notein?

sorry about my english and I hope u can help me

thanks

salvo