Flash-based USB devices can benefit greatly from this tweak, as many of these drives peak at a 6 or 7-megabyte per second write speed. The storage capacities of today's flash drives are measured by the gigabyte, so filling up an 8GB or 16GB drive can be a long process. This tweak won't magically make the silicon in the drive work faster, so copying 8GB of MP3s will take just as long from start to finish with or without this tweak. Relative drive performance improves by making the device available sooner for other processes, like when you're using portable applications on the device or transferring small batches of files.
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