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  1.    #1  
    I am using a Treo 650 on Sprint's network, and due to the incredibly limited memory on the unit, I've purchased a SanDisk 1.0 GB SD Card (I plan to eventually purchase a Bluetooth GPS unit and store the maps on the SD card, as well as MP3's). Unfortunately, it seems that the read/write speed to the SD Card seems to be very slow, especially when taking videos or pictures directly to the SD Card or attempting to view videos and pictures on the SD card. Is this because of this particular card, or could it represent a problem with the unit? If I purchase a different card, might I have better results? Are there faster speed SD cards that might work better? Any help is greatly appreciated. Thanks!

    - marc
  2. #2  
    I don't think you are alone. I bought an Ultra II 1 gb and my performance is terrible. 385 VFS Mark score.

    I am planning to swap it out.
  3. #3  
    Thats weird, i have a lexar standard 1gb and vfs read 467.

    Phawk
  4. #4  
    If your trying to transfere data via the link cable or a docking station it is remarkably slow, I have never had any problems when using an sd card reader
  5.    #5  
    I'm sorry if I wasn't clear in my initial post. I'm talking about the speed when you're transferring files to the SD card directly through the SD card slot on the Treo (i.e. taking a picture using the Treo but having it save directly onto the SD card, etc.).
  6. #6  
    There is a forum specifically for SD cards. Have you tried asking there also? Maybe the problem is not unique to the T650.
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  7. #7  
    get a panasonic card, from a previous post i did:

    Notice File Write and DB Export:

    http://www.mobiletechreview.com/tips...c_SD_cards.htm

    VFSMark results compared to Kingston Elite Pro

    http://www.mobiletechreview.com/tips...lite_cards.htm


    Lexar vs. Kingston (Lexar brand cards are Pansonic)

    quote:
    VFSMark results
    ---------------------
    Lexar 256MB / Z1 / Slot 1 / 0*
    Lexar 256MB / Z1 / Slot 2 / 597
    Kingston 256MB / Z1 / Slot 1 / 683
    Kingston 256MB / Z1 / Slot 2 / 571

    *doesn't work in slot1, see previous post

    SiSoft Sandra results
    ---------------------------
    Lexar 256MB
    ---Combined Index : 5114 operation(s)/min
    ---Endurance Factor : 9.9
    ---512B Files Test : 7297 operation(s)/min
    ---32kB Files Test : 5173 operation(s)/min
    ---256kB Files Test : 1397 operation(s)/min
    ---2MB Files Test : 197 operation(s)/min
    Kingston 256MB
    ---Combined Index : 247 operation(s)/min
    ---Endurance Factor : 20.0
    ---512B Files Test : 269 operation(s)/min
    ---32kB Files Test : 284 operation(s)/min
    ---256kB Files Test : 216 operation(s)/min
    ---2MB Files Test : 62 operation(s)/min

    Homebrew benchmark
    ---------------------------
    Here, I just timed how long it took to copy 241 MB of mp3 files to each card
    through the same USB2 reader that I used for the SiSoft benchmark.

    Lexar 256MB
    ---47 seconds - 5261.4 kB/s
    Kingston 256MB
    ---233 seconds - 1061.3 kB


    Additionally:

    Compared with Ultra Sandisk cards which have many reliability issues:

    quote:
    VFSMark Results

    SanDisk256Mb
    Test.............SanDisk 256.........Panasonic 512 (middle of 3 runs)
    File Create:.........54%......................364%
    File Delete:..........44%.....................262%
    File Write:...........13%......................195%
    File Read:..........305%......................672%
    File Seek:...........393%.....................655%
    DB Export:...........47%......................290%
    DB Import:..........348%.....................652%
    Record Access:....425%.....................754%
    Resource Access:.376%....................662%
    VFSMark:...............222......................500 (high = 515, low=499)

    VFSMark Results Toshiba 512Mb (Labeled Dane-Elec)
    File Create: 32%
    File Delete: 15%
    File Write: 11%
    File Read: 760%
    File Seek: 786%
    DB Export: 25%&..........1...........
    DB Import: 867%
    Record Access: 928%
    Resource Access: 853%

    VFSMark: 475



    SanDisk Ultra II 256 VFSMark

    Create 469%
    Delete 261%
    Write 74%
    Read 713%
    Seek 694%
    DB Export 249%
    DB Import 786%
    Record Acc 822%
    Resource Acc 738%

    VFS Mark 534



    From this discussion which actually details FZ20

    http://www.dcresource.com/forums/arc...hp/t-1078.html

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