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Thread: unable to play USB HDD 40 GB

  1. #11
    Newbie defgr's Avatar
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    Oh! one last thing...
    All the partition space, is effective. You will have a nearly 30 Gigs of music or video. ;-)

  2. #12
    Newbie defgr's Avatar
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    Quote Originally Posted by spacegear View Post
    try checking the tree. sony headunits supports only up to 3 subfolders and 399 files i guess
    Sony head unit does not have any restriction... As you see in the pics I have a sony head unit. My HDD have over a dozen folders with sub folders and one of them have 1200 files.
    It shufles trough all of them!

  3. #13
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    What about larger HD? 250GB? 1TB?

    Is the process different? How so?

    Michael

  4. #14
    Newbie defgr's Avatar
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    Is there a 1Tb IDE 2.5" HDD, that I'm not aware off?!

    It has to be 2.5". Otherwise you need external power. It has to be IDE. I don't know why. Sata never work at my case. It has to be small. Fat32 formats partition of 30Gb.
    What will you do with the rest of 1Tb?!
    After all... Larger capacity consumes more power (W) that USB conector of head units can not provide. They are designed to give enough power for a USB memory stick. That is merely 500mA.

    defgr

  5. #15
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    There isn't a 1Tb IDE 2.5" HDD, yet, but I'm sure there will be. Even so, you are correct in as far that I do not need 1TB for music... however, I do have about 150GB of music and I am expanding that collection, so I would like to have a 250GB to use in the car. Based upon the links in my previous post in this thread, there is a work around on the GB limitation on FAT32.

    Also, what if I ran separate power to the hard drive (the HDD's power port) and then just used the USB port for data? Or do the 2.5" HDD only have USB ports and no power ports?

    Thanks
    Michael

  6. #16
    Newbie defgr's Avatar
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    My friend...
    30Gb are nearly 8500 files, of 3.5Mb. That is an enornus 428 hours of music with 3 minutes average time of songs... Where are you planning to travel to?!
    I have seen your post. Excelent work!
    But think of what we need here...
    1. A head unit
    2. An external storage device with a satisfactory capacity.
    If you are planning to fill up your cockpit with cables, it's up to you.
    Get a 3.5" HDD with external power, get an inverter, format the HDD as you mentioned at your post and there you are! You will have the capacity you prefer whether you are using IDE or SATA.
    2.5" HDD powers from the head unit, direct. The output of the USB connector of the head units are designed to give enough power for a USB memory stick. That is merely 500mA.
    Some 2.5"HDD cases do have separate power port. Like those which are media players too.
    As I mentioned above, you will need this port for the kickstart current and your case MUST have power port.
    I guess that what you need is the 3.5" HDD case and the inverter.

    defgr

  7. #17
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    Very nice info.... however.... :)

    You are correct, 30Gb is truly more than enough music I will listen to in one sitting... however, if I have all of my music on the HDD, I never have to swap songs, if I am in the mood for country, pop, rap, classic, rock, rnb, etc.... I rather just have everything there so there is no need for transferring files EXCEPT when I get more music...

    Thank you for the comments on my post, but I only found the site, not my work

    I agree, I much rather have the power coming from USB than have a power cord as well... no need for all the cables - agreed.

    You mention an inverter? Why do I need an inverter?

    Does IDE/SATA matter since I am using a USB HDD? Here are the ones I am looking at:

    LaCie Little Disk 120GB Ext USB HDD $98
    http://www.geeks.com/details.asp?inv...275-DT&cat=HDD

    Seagate FreeAgent Go 120GB Ext USB HDD $98
    http://www.geeks.com/details.asp?inv...-RK-DT&cat=HDD

    WD Passport 160GB Ext USB Hard Drive $116
    http://www.geeks.com/details.asp?inv...0TN-DT&cat=HDD

    WD Passport 250GB Ext USB HDD $165
    http://www.geeks.com/details.asp?inv...0TN-DT&cat=HDD

    For 165, the 250 WD HDD is a good deal. All those HDDs are USB powered... so, would any of them work then?? I mean, they are 2.5 HDDs, so are they guaranteed to work (do they only require 500mA as well).

  8. #18
    Newbie defgr's Avatar
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    Dear friend,

    OH yes! They will work! But they will not start! :-P
    Try this link for max power consumption of 2.5" HDD
    http://www23.tomshardware.com/storag...=414&chart=157

    And this, For idle power consumption of 2.5" HDD
    http://www23.tomshardware.com/storag...=414&chart=156
    Back to school, P=V x I
    where

    P is the power in watts
    V is the potential difference in volts
    I is the current in amperes
    In our case, V is given: 5V
    Watts, too: according the chart from the above links.
    So, the conversion of Watts to Amps is governed by the equation Amps = Watts/Volts
    For example 12 watts/12 volts = 1 amp

    Generaly, EVRY electronic circuit drains a lot of power at first start. Much more than their nominal max power consumption. A power, that even at their peak, will not reach.
    To the disc power consumption, add the cases power needs...
    According to SONY's CDX-GT414U (is the one that I have) manual, max USB current is 500mA
    http://pdf.crse.com/manuals/2890967311.pdf (p. 17)
    Note, that max current refers to the maximum the port can give you for some milliseconds.
    So, with ease you can see why you need a kickstart current.

    Check this, as sata case:
    http://cgi.ebay.ie/OMATA-eSATA-SATA-...742.m153.l1262
    Or this, for IDE:
    http://cgi.ebay.ie/2-5-USB-EXTERNAL-...742.m153.l1262
    Or this, media player HDD case, which gives you the battery case too:
    http://cgi.ebay.ie/OTG-Portable-2-5-...QQcmdZViewItem
    And setup your strategy.
    All case links are random. I have nothing to do with the sellers.
    Note that all of them do have external power in.
    Best of luck!

    These ready made portable HDD don't have power input.

    Inverter, is the device that transforms the 12VDC of your car, to 220VAC (or 110VAC depending the country that you live) in order to use home appliances that need 220VAC (or 110VAC) in car.
    3.5" external HDD enclosures use 220VAC (or 110VAC) switch power supplies.

    Now, about the diference between IDE and SATA... I think that is a matter of power consumption. Notice at the charts that ATA (not all of them) are at the low end and SATA at the other. More bitrate and spin RPM consumes more power, I guess...

    I hope that I answered all of your questions... :-)

    defgr

  9. #19
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    Wow.. I'm confused. I understand your post and what you say, but do you also mean I cannot use one of the HDDs I listed in the previous post? They are all ready to go (prob even FAT32 formatted, but I would double check that)...

    So, my question basically is, can I use any of the following? (All USB powered, so I would just plug the USB into the AV Nav system.)

    LaCie Little Disk 120GB Ext USB HDD $98
    http://www.geeks.com/details.asp?inv...275-DT&cat=HDD

    Seagate FreeAgent Go 120GB Ext USB HDD $98
    http://www.geeks.com/details.asp?inv...-RK-DT&cat=HDD

    WD Passport 160GB Ext USB Hard Drive $116
    http://www.geeks.com/details.asp?inv...0TN-DT&cat=HDD

    WD Passport 250GB Ext USB HDD $165
    http://www.geeks.com/details.asp?inv...0TN-DT&cat=HDD

    You say "these ready made portable HDDs don't have power input". Are you referring to my list above? And I thought that did not matter, as they functioned just like a USB flash drive???

    Michael

  10. #20
    Newbie defgr's Avatar
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    Seagate and WD are NTFS formated and have some software embeded as their own console.

    Try the WD Passport.
    Mine work just fine.

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