App to back up 4gb USB stick in the same way as Time Machine?

[loztheguru]

Im looking for an app to back up my USB memory stick, thought id lost it the other day and I realised how much work i'd lose.

I'm currently using USB Backup. It's pretty good, but does take up a LOT of space as it backs up and compresses the whole thing each type, making each backup around 3.4gb.

I was wondering if anyone knew of something that backed up only the changes, ala Time Machine? I'm currently backing up to my local HDD and I really dont have that much spare space to play with (15gb ish)

 

[Jolly Giant]

have a look at ChronoSync.

 

[Mav3067]

Dsw

You might want to look at Do Something When. This should allow you to make a copy of your drive every time you plug it in.

 

[Jolly Jimmy]

Time Machine can back up external drives and USB sticks if they are formatted as HFS+. They should appear in TM's include/exclude column in system preferences.