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January 2nd, 2010, 01:00 PM | #16 |
Inner Circle
Join Date: Jun 2003
Location: San Jose, CA
Posts: 2,222
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Since these SDHC threads are so long, it's worthwhile to read your digest. I see about four seconds in MxR adapter for either my Transcend 16 GB Green stripe or Sandisk Extreme III 30MB 16GB. I'm waiting for some new, faster SDHCs in hopes that they would relieve the errors caused by starting/stopping recording when the green light has not yet illuminated. Sandisk, we're wating for the 45 or 60 MB/sec editions.
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January 6th, 2010, 02:48 PM | #17 |
Inner Circle
Join Date: Jun 2003
Location: San Jose, CA
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Here is a reply from MxM to my questions submitted via email in December 2009.
"Is your MxM physically different from your original MxR design?" ... MxM and MxR were the same up to about June/July 2009. From August we were shipping a new design with a new IC chipset. We've had our card improved in relation to 32GB memory card compatibility whereas the previous MxM and MxR only worked with 16GB memory cards and Transcend 32GB class 6. Yes it is now physically and electronically different to the original MxR. We have tested the new lockable MxM and Hoodmans for months before the release to ensure compatibility with different memory cards including 32GB. The new IC chipset is able to see far more 32GB than before and a little faster than the original MxR card <rest of line deleted by request of MxM>. "One fellow stated that original MxR worked only with Transcend cards. Is that true?" ... No. The original MxR worked with many 16GB memory cards, SanDisk, ATP Pro, Silicon Power but not with 32GB (only Transcend 32GB). Perhaps that's where the confusion starts. As we do testing and production with the memory cards and adapters by hand, we have been able to identify the best memory card for digital video such as ATP Pro, where we could actually liaise with the manufacturer in Taipei, and fine tune the firmware for Sony's EX/EX3 and now EX1R. In regards to your error "The error is Media Restore, but the EX1 does not complete a card format successfully." Unfortunately in this situation you have to scenarios. 1. The memory card is faulty which can be easily checked by using a different adapter. If this memory card works in another adapter, you know then the memory card is fine. 2. The adapter has stopped working but check it with another memory card. Sometimes when the manufacturer of memory cards keep changing their firmware, the camera will have issues reading and writing into the memory card. Consequently the controller on the memory card will have a similar issue. Therefore, Sony has recognized these shortfalls and with the new memory stick adapter, they will only recommend one type of memory stick. It is easier for them to control the adapter and one memory sticking knowing the firmware and the manufacturing will be consistent and they can trace the problem easier if there are any present. But, this scenario will be costly for the end user. At the moment we have the same situation where ATP Pro has been the most reliable memory card, almost durability wise on level with SxS Pro. I'm sure there will be more memory on the market with the same manufacturing standards. We done a lot of tests with different memory, adapters and so on, and we've identified several reasons for memory cards to fail: A. fragility of firmware; B. manufacturing of memory cards with cheap components which do not withstand the test of time; C. user error and mishandling. As well, we'd like to emphasize in our tests, we use SanDisk, ATP Pro, Hoodman Raw, Transcend. Occasionally on cheaper memory, eg SanDisk class 4 and Transcend class 6 only at 32GB level, we get a media error but no cards or adapter has ever failed on us, in our tests. The 2 major things I avoid are: * We don't use SxS Pro cards during testing; so the tests we've done are on USB 2.0 based interface only. * When we use SxS Pro we use the Slot A for SxS Pro cards (PCIe interface) and Slot B for MxM cards (USB interface). So if we use SxS in Slot B, then we will use MxM in Slot A (vice versa). We have encountered problems when we use SxS and MxM with memory cards in the same slot one after another. They run on different voltage and they really confuse Sony's camera logic. "Also, I notice that SanDisk Extreme III 16GB 30MB/sec is pictured in the group pictures of SDHC cards but is not included in your list of approved/tested SDHC cards. Please tell." This is an omission by error. We have tested these and they work fine. We will amend our website and thank you for pointing this out to us. We notice as well there are a lot of companies bringing new memory out in the market where they claim improvement in HD recording. Hopefully, they have recognized that the firmware for HD recording is not the same as the firmware for still photography. Also the internal components will be of a higher standard. Please understand there is a reason why; for example, Transcend 16GB class 6 costs approx. US$30, and SanDisk Extreme III costs approx. US$80 - $100 and ATP Pro costs US$60 - US$80, the reason being the components they use in the manufacturing is for budget for memory cards and accordingly for professional memory cards. We hope this is of assistance and don't hesitate to contact us again for any information. Kind regards, Marek and Maggie MxM Express (02) 9798 8986 0416 275 389 (cell) info@mxmexpress.com MxM Express |
January 6th, 2010, 03:07 PM | #18 |
Inner Circle
Join Date: Feb 2004
Location: Brooklyn, NY, USA
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I have no doubt the newer MxM cards are a major improvement given the reports I'm reading but I'd point out that I'm using one of the earliest MxR cards (ordered in the first day of release or so) with a Sandisk 32GB Ultra II Class 2 (YES CLASS 2) purchased January '09 and have had no media restore issues.
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