USB flash drive - slow transfer problem all of a sudden?

[kfunk]

I have a 16GB flash drive and when I'm copying files, speed varies from high 40s mb/sec to single digits mb/sec. Why is it not consistent?

[Know Nuttin]

is this one large file or various size files that you're transferring?

[kfunk]

is this one large file or various size files that you're transferring?

sometime few hundred megs and sometimes few gigs

[Know Nuttin]

i forgot to ask, transferring to the key or transferring from?
do you have other USB devices on the system in use?

[mepis]

Im kind of interested in this too. I have a sandisk cruzer and with most systems I transfer at least 15 m/s but on my laptop I get maybe 7 ot 8.