Do the GY-HM100 and GY-HM700 cameras work with Class 10 SDHC cards?
Class ratings for the minimum data transfer speeds of Secure
Digital High Capacity (SDHC) cards were established by the SD
Association. A Class 6 card has a minimum data transfer speed of 6
megabytes (48 megabits) per second under conditions specified by the
association. Initially, only Class 6 rated SDHC cards were
compatible for video recording with the GY-HM series. The cameras
detected the card classification and and rejected cards that were
not Class 6. This design is to help prevent data loss when
attempting to use slower speed cards.
Recently several manufacturers (SanDisk, Panasonic, Adata) have
introduced faster SDHC cards with a new Class 10 rating. While this
is a good thing, the Class 10 specification was not available when
the cameras were introduced in March 2009. JVC has developed a firmware update that allows Class 10 cards to be used in both
models. This new firmware is now available for download from our support site at http://pro.jvc.com/update.
Last update: 2009-08-19 06:58 Author: Dave Walton Revision: 1.1
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