Hard Drive Question

I'm kind of new to DIY upgrades. I switched out my 160gb hard drive on my macbook pro with a 512gb ssd recently. When I transferred the files from my old macbook, I checked the size of the hard drive and I took a look at the breakdown of how much music and video and total space used. It said it had 350gb of "other" items on my hard drive. I've done a search of the hard drive to see exactly what's on it that could take up 350gb of space, but I'm coming up short. SSD was only filled with what was on the 160gb hd before the file transfer. Any ideas as to what the "other" items may be or any way I could find out or clean it up?

How did you upgrade from an 160gig HD to a 512gig SSD recently...and have now discovered 350gig of "Other". 350gig exceeds the max. capacity of the old HD by more than 2x??

- Nick

Whatever it is came from the external hard drive from my old macbook. The strange thing is that much "other" stuff didn't show up on my old macbook. I cloned the 160gb (which had about 100gb on it) to the 512gb and then added from the external.

Suggest erasing the SSD and doing a clean install and migrate things over. Platter drives do not clone well to SSDd.