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USB/MTP device My new car stereo takes a USB thumb drive and plays back my existing mp3's fine. When I purchase a song through the music distributing websites however the stereo tells me that song is not supported. The manual says I can play back these songs with Digital Right Management (WMA-DRM10) if I have an MTP device with "USB digital media streaming". My question is: Are there thumb drives or portable hard drives that act like MTP devices or do I have to buy another player of some kind to load my songs and then plug into my car stereo? Thanks, Bill

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Re: USB/MTP device

The real issue here is Digital Rights Management (DRM). 
Most purchased MP3/WMA/AAC songs are protected by a DRM license.
The only players that can play it are those 1) capable of handling the type of DRM and 2) registered with the correct DRM license.
That's why I only buy music through, because the music is not DRM protected, and you can just copy it to your USB thumb drive or any player you own. I do this all the time with a Pioneer car receiver that has USB capability. Works fine. 

Posted on Jan 02, 2009

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Re: USB/MTP device

MTP stands for "Media Transfer Protocol", which is used by some brands of portable mp3 player. The main drawback to the MTP standard is that it is mutually exclusive with Mass Storage, which is the standard external hard drives and thumb drives utilize.

I have never heard of digital media streaming being applied to USB, just networking setups.

Posted on Jan 13, 2008

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Re: USB/MTP device

I bought a Eclipse HDD in dash but everytime i turn it on it ask for a password which i dont know about? is there any way i can unlock it.. what can i do? thanks

Posted on Jan 13, 2010

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New Alpine radio, went through setup, plays fine on radio/tuner on all four speakers, but ipod (USB port) or internal CD only plays on front speakers.

Just a thought - the usb provides a digital signal which carries information about how the signal is to be processed; mono, stereo, surround sound stereo, etc.
If the mp3 music file was only recorded in 2 speaker stereo perhaps that is how it plays back.

Admittedly the radio signal is stereo and yet it plays on four speakers but unless it is a DAB radio it is analogue and maybe that makes a difference.

Perhaps there is an internal electronic fault with the digital processing part of the unit. I suggest reading the handbook again and then perhaps contacting the seller.

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My usb car stereo dosnt play all the songs on my kingston

Not every car stereo can play every song in a usb.

This deppends on how many songs and how many folders you have in your USB, regardless of the USB's capacity. My car stereo for example, can only play about 50 songs pero folder and i think it tops at 9 folders.

Try to organize your music in folders and change the names of the songs taking every "·$&%/&$/)(=)(( Symbol and non regular character out.

Or better, get your car's manual and it might say how many songs it can play. i think mine cant read over 1.5gb. if it doesnt say, you just have to try and work with it till you get it figured out.

The last thing i try and it might work:
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Sorry about my english.

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ANSWER: The headphone jack will not charge your iPod. Only the USB will charge your iPod. However, the headphone jack will play music, but the USB will not play music from your iPod.
REASON: The headphone jack does not provide any power to charge your iPod. It isnly has enough power to recieve a music signal.
REASON WHY YOU CANNOT PLAY IPOD THROUGH THE USB: The USB is only intended to be used with a flash drive or external hard drive with a folder structure containing either .mp3 or .wma files. The way the USB works on the system is that it reads all the files and folders on the entire device and will say "reading" until it reads all the files and folders. This should only take a few seconds but if there is tons of files it may take longer. Main problem: An iPod contains much more than just music files and folders - it contains an entire operating system. Worse, the operating system which the iPod uses is protected, keeping other devices except for iTunes from reading the music files.
TO PLAY MUSIC FROM USB (NOT IPOD): You will need to use a flash drive or external hard drive with your USB. This device can only contain music, and the music must be organized into folders. Your iPod will not work. However, you can use Auxiliary input using a cable which both ends are 1/4" headphone jacks, one end going to the iPod and other plugged into your stereo.
SOLUTION: To charge your iPod, you need to plug it into USB. However, to play music, you need to plug your iPod into the headphone jack.
Good Luck! - Chris Proia
p.s. Here is the User Manual for your XDM6350 :

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I have since bought an Ipod and the USB input works just fine. Clarion says the deck is MTP compatible, but it will not run a lot of MTP devices. Only Ipods and certain memory sticks. The Creative Zen Vision M is read as an MTP device when it it plugged into anything like a computer, Xbox 360, and the Clarion USB receivers. The Clarion units even attempt to read it as an MPT device, but will not play. It is not an issue with the receiver or the MP3 files. The Creative Vision M is not a compatible device, sorry.

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