iPOD and SDHC – SDXC cards

iPOD and SDHC – SDXC cards

Introduction

For some time many people have wanted to use my iFlash iPod CF adapter with the new generation of large format SD memory cards. SDHC and SDXC are the new generation of SD cards which are cheaper and have capacities of upto 256Gb and growing.

SDXC 7g and 256Gb PNY

SDXC Installation

Installation

7g 256Gb About Screen

7g and 256Gb PNY

Installation is simple, the iFlash is first installed – then install the SD card in to your SD-CF Adapter – finally insert the whole thing in to the iFlash, ready to restore the iPod.

SDHC and SDXC which cards to get

So far all the SDHC and SDXC cards I tested worked ok, so it is looking likely that majority of the SD cards out there will work ok.

In terms of card speed, one user has reported issues playing FLACS with a Class 4 card. I would suggest you want a minimum of a Class 6 card with Class 10 the prefered option.

So far… working and tested in 5g / 6g / 7g iPods

iPod 5g with 256Gb PNY

iPod 5g with 256Gb PNY

The current compatibility list has been moved to the iFlash-Solo product page.

 

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306 thoughts on “iPOD and SDHC – SDXC cards

  1. Pete

    @Support

    Hmmm, to my great surprise AOMEII actually seemed to be able to fix the corruption. Took a long time but it seemed to work. Have to say that completely contradicts what I thought about how this all works, I didn’t think it was possible to use checkdisk on an ipod like that from the PC, as I thought the ipod doesn’t give the PC the required ‘honest’ access to the media? (I thought it only presented the PC with a kind of emulated disk structure?)

    Anyway, once done, rockbox was able to build its database. Still have to finish the rest of the sync though.

    This does seem to imply the corruption was due to some problem with my PC/USB and the sync process rather than the memory cards.

  2. Pete

    @Support
    Hmmm, if it fills it sequentially that’s useful to know. Unfortunately that makes it even odder that the ‘bad block’ errors (and sync failures) occurred at different points after each restore-and-retry.

    Did 40Gb the first time before the first error, which would be in the slot 1 card, then it got to 140gb the second time (second card), and then 400gb+ the third go (implying third card – really thought it was going to work that time). I have 128gb + 3x200gb cards in there.

    Is it absolutely sequential, or could it at some point go back and use remaining space still on the first slot card, say? It feels as if its hitting the same bad sector but at different times in the sync.

    Of course it could be something else entirely and not a card issue.

    Even after some of the errors I was able to resume and fill the pod, only to find it was left with some corrupt directories at the point of the failures that stopped rockbox building its database, and AOMEII claimed the partition had ‘errors’, if I scanned it after the sync failures occured (but if I scanned it before the sync errors occured it said everything was fine, as I say got up to 400GB with eveyrthing seeming fine the last time).

    Would be nice if Rockbox or iPod OF had their own internal scandisk./checkdisk utility.

  3. Support Post author

    @Pete – The storage space is used sequentially, and iTunes will generally fill free space closest to the start of the disk and outwards. If you know at which point you got the bad sectors, you should be able to make a calculated judgment on which card(s) caused the glitch.

    I have found H2Testw very good to pickup faulty or bad cards, it does a full write/read cycle and compares CRC – so pretty bolts and braces method of testing the card.

    Never heard of the power thing you mention – the only thing I can think of which that could be related to is that SD card standards state that cards should work with 5v and 3.3v – it is possible that some PC card readers used 5v, while majority of portable devices would use 3.3v to power up the SD card – and non-standard or poor quality cards would cause issues on 3.3v!

  4. Pete

    Got a very frustrating problem here.
    With a quad adaptor and 4xmicro sd cards I find I can’t sync a full library. Tried several times, but at some unpredictable point (first attempt after 40gb, second after 140gb and 3rd restart at 400gb) it fails and windows reports a ‘bad block’ and I get corruption (confirmed by AOMEII, though it can’t fix it within the ipod).
    Now, two of the 4 cards I tested before installing, with h2testw (1 from amazon, one from ebay), but the other two were from what I was sure was a reliable outlet and testing takes so long I didn’t bother with those. The two I tested passed.

    Three were in sealed retail packaging, the last wasn’t, but then that last one is one of the two that passed h2testw.

    The frustrating thing is I have no idea which card has the bad block (someone’s ripped me off, but who?). I don’t believe any of them are actual hacked fakes, because of the way it fails – I can pretty much fill them all and most of the content seems good, but the corruption stops it being useable. One of them appears to have a fault, i,e, bad sectors.

    How do I know which one has the problem? Maybe the reliable shop isn’t so reliable after all, or maybe h2testw isn’t totally reliable as a test?

    I have heard that even h2testw won’t necessarily pick up such a fault (as opposed to an outright fake that grossly lies about its capacity), because a failure might only show up if the card isn’t getting a very good supply of power, so when on the PC it might just about work but then fail in a mobile device.

    The only way to narrow it down is to reopen the ipod (a pain for slim cases) and then try it again with each card isolated, taking half-a-day to try and sync again with each one to see if it fails.

    Any other ideas? Does the quad adaptor fill up cards in any particular order?

  5. Martin

    @Support – I can do all that, just not with the 512GB card. It works perfectly with my 2GB card, but that isn’t much of an upgrade

  6. Support Post author

    @Martin – Very strange, I own a 512Gb Kingston personally myself installed in my daily 768Gb iPod. You sure you don’t have a silly fault like a bad ribbon causing all your problems, it would explain why you can’t DFU and restore back to the Apple OS.

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