Two Things..

[chayes]

1. For some reason, when I right click -> Get Info on my MBA 13in. SSD it says Capacity: 120.47 GB / Avail: 226.55 GB. Why does it say this when my SSD is 128 GB?

2. I tried putting my iTunes library (5 GB) on a 16gb SDHC (Patriot Class 6) but I've found it to be so slow and unresponsive compared to being on the SSD! Even though I don't want the space taken up on my SSD, I find the friggin 5 second delay being so annoying compared to having it instantaneous response on my SSD. Since my library is so small, I may keep it on my SSD for now. Do other SDHC users notice the delay?

 

[Acorn]

the transfer speeds on sdhc cards suck really bad. its not just you. its slower then a usb to 2.5 inch laptop drive. really aweful. i tried the same thing on my air by using a sdhc card as extra space from the internal. it was so bad it was unusable

 

[Bear]

1. For some reason, when I right click -> Get Info on my MBA 13in. SSD it says Capacity: 120.47 GB / Avail: 226.55 GB. Why does it say this when my SSD is 128 GB?

The Get Info returns the number in computer speak. The 128GB is marketing speak.

Computer Speak: GB = 1024*1024*1024
Marketing Speak: GB = 1000*1000*1000

 

[MultiFinder17]

The Get Info returns the number in computer speak. The 128GB is marketing speak.

Computer Speak: GB = 1024*1024*1024
Marketing Speak: GB = 1000*1000*1000

That's not going to account for the 106GB difference in the capacity/available space