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BD
June 19th 07, 05:53 PM
Hey, all.

I'm looking to get the Pioneer Premier DEH-P690UB.

I'm attracted to this unit partly because of the USB functionality.
Carrying MP3s on flash drive sounds the handiest of the handy.

But it's not clear if there are capacity limitations on the USB device
being connected - does anyone know anything about an upper limit? I
hear stories about decks that won't recognize USB devices that are
more than 2GB in size, etc...

Any info welcome.

Thanks!

BD
Mister.Lull
June 21st 07, 12:05 AM
On Jun 19, 9:53 am, BD > wrote:
> Hey, all.
>
> I'm looking to get the Pioneer Premier DEH-P690UB.
>
> I'm attracted to this unit partly because of the USB functionality.
> Carrying MP3s on flash drive sounds the handiest of the handy.
>
> But it's not clear if there are capacity limitations on the USB device
> being connected - does anyone know anything about an upper limit? I
> hear stories about decks that won't recognize USB devices that are
> more than 2GB in size, etc...
>
> Any info welcome.
>
> Thanks!
>
> BD

Every single HU that recognizes USB input that I have viewed (online,
mostly [cardomain.com]) has had a limit of 2 GB. I'm not saying that
there hasn't been advances in the last couple weeks to the contrary,
but since nobody else was answering your question I thought I would
tell you that, from what I've seen, it appears that 2GB is the norm
for the USB drive size limit.

~Mister.Lull
s3sqguy[_22_]
June 21st 07, 07:26 AM
Don't know your budget or preference, but on another board someone was
talking about the nice audiophile features on the clarion DXZ775USB. It
says it will play 65,025 songs off the USB on the clarion site. It has a
lot of nice stuff on it and about 220 tyd on ebay. I just got an amp or
I would be looking at it.


--
s3sqguy
BD
June 21st 07, 03:42 PM
On Jun 20, 11:26 pm, s3sqguy <s3sqguy.2si...@no-
mx.forum.carstereos.org> wrote:
> Don't know your budget or preference, but on another board someone was
> talking about the nice audiophile features on the clarion DXZ775USB. It
> says it will play 65,025 songs off the USB on the clarion site. It has a
> lot of nice stuff on it and about 220 tyd on ebay. I just got an amp or
> I would be looking at it.
>
> --
> s3sqguy

I found a forum where people are talking about recent installs with
this unit. Some external hard drives work, some don't - some require
additional power from the lighter... but it sounds like if you have it
set up right, the Pioneer will see 80G drives (perhaps more), which
equates to tens of thousands of songs.


I'm gonna go with the Pioneer.
Vestax05pro
June 21st 07, 06:47 PM
250 gigs is the limit.


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Vestax05pro

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Vestax05pro[_3_]
June 21st 07, 08:40 PM
http://tinyurl.com/32fl4t


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Vestax05pro

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BD
June 21st 07, 11:36 PM
On Jun 21, 10:47 am, Vestax05pro <Vestax05pro.2sj...@no-
mx.caraudioforum.com> wrote:
> 250 gigs is the limit.
>

Cool. Can I ask where you found that out? I've seen some specs on
folder count limits, directory tree depth limits, but nothing on
overall capacity limits.

Anyway. I think I could fit most of my stuff on 250G. Even the jug
bands.
Mister.Lull
June 22nd 07, 03:53 PM
On Jun 21, 12:40 pm, Vestax05pro <Vestax05pro.2sj...@no-
mx.caraudioforum.com> wrote:
> http://tinyurl.com/32fl4t
>
> --
> Vestax05pro
>
> I live for Double Western Bacon Cheeseburger.
> ------------------------------------------------------------------------
> Vestax05pro's Profile: 7766
> View this thread:http://www.caraudioforum.com/vbb3/showthread.php?t=266364
> CarAudioForum.com - Usenet Gateway w/over TWO million posts online!
>
> --
> Posted via a free Usenet account fromhttp://www.teranews.com

Wow!

These things have come a lot further than I knew!!

Here are some other stats directly from that pdf file:

USB audio player/USB memory compatibility
------------------
~Specification: USB 2.0 full speed
~USB Class: MSC (Mass Storage Class) device
~Protocol: bulk
~Maximum amount of memory: 250 GB
~File system: FAT12, FAT16, FAT32
~Supply current: 500 mA

~Up to 15000 files on a USB portable audio player/USB memory can be
played back.
~Up to 2048 folders on a USB portable audio player/USB memory can be
played back.

So aside from a general size limit there are folder and song limits...

~Mister.Lull
BD
June 22nd 07, 04:56 PM
> Wow!
>
> These things have come a lot further than I knew!!
> So aside from a general size limit there are folder and song limits...
>
> ~Mister.Lull

It's weird, though - on another Pioneer spec sheet I was reading about
the max number of mp3 files 'per disk', and it stated 999. I wonder if
that meant actual physical CDs instead of USB devices.

Of more interest to me now, however, is the stated amperage supplied
by the USB port. I can take that figure, and compare it against the
power requirements of various 2.5" and 3.5" hard drives in USB
enclosures, and ultimately have a nice little hard drive, powered just
off the USB, chock full of stuff.

There's also issues of device scanning - the HU will scan the USB
device for tracks, in order to make them browseable in the menu. But
this can take some time, especially with complex directory structures.
Some people are finding that the unit re-scans the device whenever the
car is turned on - and some people find it happens only when they
attach the device.

I found a forum where people are wrestling with this right now - which
drives work, which drives need extra power, how to supply that power
via the cigarette lighter socket, stuff like that.

Kind of bleeding edge stuff, I guess - but I think it'll all be quite
a neat solution once I get the techy details sussed. ;)