I purchased a 1 TB Mac in 2010 which I thought would be more than enough hard drive space. However, I have really gotten into purchasing all of my media electronically (movies, music and tv shows) and I am quickly using up my storage. Is there an alternative way/place to store this content so that I won't have to upgrade my hard drive to a larger one? I have everything backed up on the time capsule. I am wondering if I can purchase a stand alone hard drive to store this media and some how access it still through Itunes and Apple TV? I would prefer not to have to upgrade my hard drive especially since Apple only currently has up to a 3TB option. Any suggestions are much appreciated! I have to believe I am not the only one that has come across this issue.
You can purchase standalone external hard drives that can act as both a backup drive and media and data storage, too!
Also, if you want faster transfer rates and a faster, bootable OS X external drive, depending on your model iMac,
I would look at FireWire 800 drives instead of USB 2.0 drives.
You seemed concerned that even 3TB drives may not be large enough for you.
Check out Mercury Pro hard drives and OWC ( macsales.com), external drives from G-Technologies and from LaCie. For LaCie, their D2 drives come in up to 4 TB storage size config.. The D2 line come in FireWire connection protocol. Lacie's larger network Big Disc drives come in storage configurations from 2 TBs up to a whopping 20 TBs. These drives are more or less just for data storage and only use USB 2.0 for a connection protocol. You can still make these drives a bootable OS X drive, they will just run a little slower in comparison to a bootable FireWire 800 connected drive.