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Thread: Detroit News Reporter Seeking MP3Car projects for newspaper article

  1. #51
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    Originally posted by MP3DUB
    I think both camps come from similar ground, the empegs just want tricked out hardware that just flat out works, where as the mp3car is more of a homebrew type mindset, where the road to the destination is fun.
    I think that a lot of people here considered, or atleast looked at the empeg at one point, but when they were selling for $1200, they were a little far fetched when you could build a pc based system from parts for next to nothing.
    I look at them at that price and rolled a lot. I saved up 500 to buy one when the prices dropped a bit, then they fire sold them for 250 each so I bought two.
    There is no way I could put together a PC system in the UK, that would do the job of the empeg at the time I bought it. I did look a lot. I was using a toshiba libretto as my mp3 player for a bit which worked quite well.

    Dave

  2. #52
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    Originally posted by phil.45

    Also, the idea of using something like Autoroute is laughable. There are much better applications that work properly and are simple to use.
    It's what I had at the time without having to go buy something. Im open to suggestions for something else for the UK / european market.

    Er, no actually there isnt. Open up your unit and you will see its hard drive is just bolted into place.
    I guess the Shock Mounting Rubbers on the plate that it attaches to are just people imaginations then Plus, the hard drive is not constantly spun up, it buffers the tunes to memory, which helps a lot with protection.

    Dave

  3. #53
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    all this bickering has driven away perhaps the only woman who has ever participated in this board.. :-(

    Maybe we should start up a new thread to discuss the empeg vs carputer?

    Mike

    (come back motorcitygal)

  4. #54
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    Originally posted by thenominous
    It's what I had at the time without having to go buy something. Im open to suggestions for something else for the UK / european market.
    See my sig.

    I guess the Shock Mounting Rubbers on the plate that it attaches to are just people imaginations then Plus, the hard drive is not constantly spun up, it buffers the tunes to memory, which helps a lot with protection.
    Shock Mounting Rubbers? Interesting interpretation of what are actually just rubber gromits. A contentious subject, but most people agree that its worse to not bolt a hard drive to a rigig surface in vehicle applications, as additional "suspension" can amplify the effects of poor road surface.

    Also, spinning a drive up and down all the time will result in reduced lifespan.
    -------------------------------------------
    (=========-) 99% complete
    --------------------------------------------
    AMD K6/2 500 @ 450mhz to keep heat and power usage down, 64Mb, slim CDrom drive, 64mb USB pendrive for MP3 transfer, 10Gb 2.5" drive for MP3, USB>RS232
    All jammed in external CDROM drive case.
    Kenwood KVC-1000r In-Dash LCD. x-10 MouseRemote. Destinator V2 Gps. DC-DC with onboard Shutdown controller.
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  5. #55
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    Originally posted by phil.45
    Shock Mounting Rubbers? Interesting interpretation of what are actually just rubber gromits.
    You can't tell from that picture, but the tray on which the hard drives are attached is suspended by four half-inch or so tall rubber standoffs that are hollow and reasonably flexible.
    A contentious subject, but most people agree that its worse to not bolt a hard drive to a rigig surface in vehicle applications, as additional "suspension" can amplify the effects of poor road surface.
    Most people who are packaging engineers, or just based on anecdotal evidence? It certainly would produce additional motion, but laptop drives are designed to handle motion, whereas desktop hard drives are not.
    Also, spinning a drive up and down all the time will result in reduced lifespan.
    Certainly true, but less so for laptop hard drives, which are intended to be used this way.
    -Bitt Faulk

  6. #56
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    Originally posted by wfaulk
    Most people who are packaging engineers, or just based on anecdotal evidence?
    Packaging has go nothing to do with it. In pratical use the drive heads are suspended by a cushion of air generated by the motion of the drive platters. It is not nessesary to be cushioning the drive, this is backed by the high G-force ratings quoted in drive manufacturers warranties.

    Certainly true, but less so for laptop hard drives, which are intended to be used this way.
    Laptop drives are no more robust than a standard 3.5 drives - less so in fact, as the outer case of the drive is often made of thin aluminium which is easily bent, damaging the internal heads. If you must perpetuate the myth that they are stronger, please present hard documentated fact. "Some bloke on some forum told me" does not constitute fact.
    -------------------------------------------
    (=========-) 99% complete
    --------------------------------------------
    AMD K6/2 500 @ 450mhz to keep heat and power usage down, 64Mb, slim CDrom drive, 64mb USB pendrive for MP3 transfer, 10Gb 2.5" drive for MP3, USB>RS232
    All jammed in external CDROM drive case.
    Kenwood KVC-1000r In-Dash LCD. x-10 MouseRemote. Destinator V2 Gps. DC-DC with onboard Shutdown controller.
    ----------------------------------------------

  7. #57
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    Originally posted by phil.45
    Laptop drives are no more robust than a standard 3.5 drives - less so in fact, as the outer case of the drive is often made of thin aluminium which is easily bent, damaging the internal heads. If you must perpetuate the myth that they are stronger, please present hard documentated fact.
    Let's use Hitachi drives (nee IBM drives) for example.

    Their top of the line mobile drive is rated for 200G/2ms shocks whereas their top of the line desktop drive is rated for 55G/2ms, both operational specs. The mobile drives are rated for 0.67G random vibration. The desktop drives are rated the same, but only horizontally. Vertically, they're rated at 0.56G, indicating that they're not meant to be moved. (Personal anecdotal evidence, which is not something that should generally be relied on, tells me that desktop hard drives shouldn't be moved. I've had any number die shortly after moving cases.)

    They also run much cooler (0.95W vs. 5-7W at idle), which is not something I brought up before, but which is important in the low airflow space behind/in the dash.

    You could argue that this is misleading and self-serving information provided by the drive manufacturer, but I don't know that anyone has performed any independent tests verifying or challenging these claims.

    Oh, and where are my laptop drives going to have something bang against them once installed? I don't see the lightweight cases being an issue.

    Travelstar drives datasheet
    Deskstar drives datasheet
    (I hope those URLs aren't time-sensitive.)
    -Bitt Faulk

  8. #58
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    Looks to me like Phill wasn't debating the g-shock ratings of laptop harddrives. He's talking about the read/write mechanism, which is what's prone to wear out from frequent start/stop requests. And from that standpoint I agree with him.

  9. #59
    Self proclaimed spoon feeder TruckinMP3's Avatar
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    wfaulk,

    Personal experiance tells me a standard IDE desktop drive holds up just fine in a horizontal mount with no extra mounting precoutions whatsoever.

    IBM deskstar 10 gig and Maxtor DiamondMax 8.4 have had no trouble in my Toyota truck for 4+ years. and over 100K miles on rough Denver streets.

    This is a horizontal mount with no padding or rubber grommets....

    I agree this could be an anomoly, but it might not either.

    Hard drive durability has been debated in multiple threads on this board.
    Topics have covered: Laptop vs Desktop, Mounting options and Temps. No conclusive proof has been offered to justify the additional cost of laptop drive tech from a durability standpoint.

    Power consumption, Heat and Size all point to the laptop hardware being better.

    Thanks
    TruckinMP3
    D201GLY2, DC-DC power, 3.5 inch SATA

    Yes, you should search... and Yes, It has been covered before!

    Read the FAQ!

  10. #60
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    Originally posted by TruckinMP3
    Personal experiance tells me a standard IDE desktop drive holds up just fine in a horizontal mount with no extra mounting precoutions whatsoever.

    IBM deskstar 10 gig and Maxtor DiamondMax 8.4 have had no trouble in my Toyota truck for 4+ years. and over 100K miles on rough Denver streets.
    Can't argue with personal experience.

    Out of curiosity, have any of the members of the board been off-roading with their mp3 players? I know a number of empeg owners have with no problems.

    I still think laptop drives make more sense, but I'm not trying to convince anyone to go buy them. They certainly make me more comfortable, though.
    -Bitt Faulk

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