This is basically how Windows designates storage devices. It can be confusing. One thing you might do is take control of drive letter designation. Move them down the alphabet and make the last one "Z". This way Windows will honor your naming scheme instead of using its own defaults.
I have a USB 6 in 1 media card reader. When plugged in, it adds 6 extra drives to My Computer. Is there any way to make my computer think that this is only 1 drive?