A few quick questions about my new MP3 pla

Ok, I like to get to know anything I buy so I decided to come here and ask, I hope you dont mind answering (My MP3 player is the MuVo c00):
) In the instruction manual it says that play WMA file reduce the battery life of your player. Since converting them reduces the size by a fair bit I was wondering if the reduced battery life was worth it and how much it reduces the battery life.
2) When is a good time to replace the bettery in my player? Should I wait for it to completly die or what because I dont want to go replacing batteries 3 quarters full.
3) Is there any sound or quality differences between MP3 format and WMA?
4) Is the program that came with the player the best thing to add music with or would buying something else do the trick or even just copy and paste?
5) Finally, how do you attach the neck strap? I dont see any place where it could go unless you have to attach it with the arm band on it.
Thanks for your help and I might have some more question but untill further notice this is all I have and again thaks for your time.

. You have to bear in mind this is for an equivalent MP3 e.g. a 28 kbit/s encoded WMA is going to use more power than a 28 kbit/s MP3. Normally WMAs are encoded at a lower rate anyway, hence will use less power. There are many factors that affect battery usage.
2. Wait for it to go flat.
3. Complex answer. In general WMA is used when you want more space and aren't so worried about quality, at the 64 - 28 kbit/s range. MP3s (using the LAME encoder) are better at the higher bit-rates of 92 kbit/s. The bottom line is try a few different bit-rates for both MP3 and WMA, take a listen, and decide for yourself.
4. With the MuVo it's very easy, just use Windows Explorer to copy files. I wouldn't buy any other software, unless you find something you really like to create MP3/WMA files.
5. Not sure on this one...

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A few quick questions about my new MP3 pla

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