Take lanes

Hi,
I used "take lanes " for the first time. Using 8 tracks,  I had a drummer record a verse about 5 times, then a chorus about 5 times and a bridge , again, about 5 times.....so, I had about 15 lanes/track. Everything was going well until a recording was stopped and I received the following prompts : "Unable to save entire recording. The audio disk may be full." This was accompanied by the blue "Audio Dropout---The audio engine has stopped."
 
I have only used 1% of my audio drive and I've plenty of RAM. Does anybody know what the problem was? I suspect I was asking too much of the gear.
 
 
thanks,
 
Kawika