The Ptune and the Th55's audio player
 

I don't know is anybody has this experience before?
Ptune consumes a lot of battery, and it lasts around 5-6 hours in TH55, but the TH55's built-in audio players lasts more longer than Ptune.
I use the th55's audio player around 8-9 hours for mp3, and the battery life still has around 85%

Yup TH55's audioplayer is the best for saving battery.

That's because the TH55 has a dedicated chip for the Audio Player. Other programs can't access this chip so they drain more power.

but, one thing that i hate about it is th55 doesn't support realplayer format because the size of the realplayer format is so small, and i can store up to 100 realaudio songs in a 128MB memory stick.

At what bitrate? If the Real format could really do that, it would be the only one anyone used, but since it isnt, im guessing you are using a low bitrate.

why not use atrac that should work on a 128 MB...

It's a choice you have to make: Battery life vs. storage space

I use my TH55 for MP3s on my commute and purchased a 512Mb MS for it. I record my MP3s at 160kbs and the sound is good using the native audio player and my Shure E3C earbuds.

The build-in player will not play VBR MP3s, that sucks.

I agree and couldn't use any of the VBRs I had previously ripped for my T-665 in my TH55 but to me it's a small price to pay considering how much I like the rest of the TH55.

What is the difference between VBRs and usual? :o

VBR is Variable Bit Rate. Basically it uses a lower bit rate to encode "silence" and a higher bit rate to encode louder portions of a song that need it. Theoretically it saves space without a loss in quality.

Hope this helps.

does anyone know if the media launcher music player gets the same batt. life as the audio player that comes on th-55?

Its bout the same. I haven't noticed a big hit on battery like I did when I use PocketTunes so now I have MediaAudioPlayer as my set up for listening to music.