The issue with the Invalid Clips have frustrated a few of our customers on more than one occasion. Some of the causes are accidental or random. The only two that can be completely preventable are invalid clips caused by bad SD cards and bad batteries. Honestly if you are willing to pay for the POV.1 please spend the extra $10 or $20 on a decent SD card. Is it really worth loosing one of your coolest rides ever? Post after the jump.

Powerloss

This includes loss of battery connection or from an unstable power connection. The
POV Power adapter can produce an invalid clip when it becomes dislodged from
the cigarette lighter receptacle. Power loss can be tricky, so I have included
more information below.

SD card failure

Lower end SD cards including Kingston, PNY, Patriot, have higher reported instances of failure and we have seen this with other SD cards in the same price range. Here is why: We think that these cards may not write data to memory at a consistent rate and speed.

Any SD card rated below “Class 4” can generate invalid clips

Here is the technical detail (but the lesson here is that price = quality and Class
4 SD cards are worth their price for the quality and reliability they provide).
Today, these brands are known to perform well with the POV.1 (Sandisk Extreme
III or IV and Lexar cards). Now the boring technical details: The SD Card Association mandated a new Class system for speed ratings. These classes represent the minimum speed the card can write to memory. A Class 4 card is guaranteed to write to memory at a rate of 4MB/s or higher. The POV.1 needs a transfer rate of 3.5MB/s and thus only Class 4 and above cards will write fast enough. One problem is that, some of the cheaper SD cards rated at Class 4 are not up to the specification.

Signal Loss

Cable becomes disconnected. If the Digital AV cable is disconnected while the user is recording video the clip/loop that was being recorded will become an invalid file.

In rare instances, Invalid Clip could stem from these issues:

Old firmware

Users should check to be sure they are using Firmware version 1.3 or above. Older versions may produce invalid clips because the POV.1 cannot read all formatted cards from a computer. To check if your firmware is updated, go to the Setting Menu and click to the left. If you need to upgrade your firmware, go to: www.vio-pov.com

Old/damaged batteries or low-end NiMH

We have a theory about different battery types and occurrences of Invalid Clip. Here it goes: NiMH rechargeable batteries will give of a consistent voltage until the batteries are just about out of power. With alkaline batteries the voltage will steadily decrease as the battery runs out of power. Since this steady decrease is constant and mostly universal, the POV.1 battery gauge will represent this voltage decrease. Since NiMH batteries have a steady voltage of 1.2v (this is also why NiMH appear to only be ¾ full) the unit will not know to save the video clip and shut down properly, resulting in an invalid clip). (WE HAVE NOT FULLY TESTED THIS!!!!)

Component Short

If a wire shorts in the image head, AV cable, or Recording Unit then the POV.1 will make an invalid clip.

Well the firmware update has been released, and the POV.1 can use SDHC cards up to 8GB! More information and instructions after the jump.

With the new firmware update you will be able to store large amounts of video on one card. Please be aware that due to the file system used on the POV.1 there are limitations to how long a video can be. You can store as many video files as you want, but they can not be any longer than 4 hours per clip, nor can the files sizes be larger than 4GB.

At full resolution the 4GB file size limit is reached at about 3 hours. For those who are recording an event that lasts longer than 3 hours, you should periodically save your recordings and begin new recordings to avoid missing any of the action. Keep in mind that long clips present a work flow challenge as well. It is difficult to manage such large videos in the editing process. V.I.O. recommends saving shorter clips to help manage the editing and sharing process.

If you do not stop the recording before the 4GB/4Hr limit is reached, the POV.1 will save the video and go into STANDBY mode. To begin recording again you must hit the REC button. The POV.1 will power down from STANDBY mode if you have enabled the “Power Off Timeout” mode in the settings menu or if the battery power has run out.

Storage times at full resolution:

4GB - 169 minutes - 2 hr 50 min

8GB - 345 minutes - 5 hr 45 min

To obtain the update for the POV.1 firmware, please go to: http://www.vio-pov.com/firmware_update/

**Update**

As noted in one of the comments below, we have run into an issue with Mac computers and the update. We are working on a fix (the mac puts hidden files on the SD card and they lock up the update). We hope to have a solution up today.

One of the most frequently asked questions we here in Customer Care at V.I.O. is when will we be able to use larger capacity cards. Currently the POV.1 can only use SD cards and not SDHC cards. What is the difference between the two? I will look into this after the jump.

The SD (secure Digital) card is a small FLASH based card that is about 32mm x 24mm in size and about 2mm thick. The memory size of the SD card ranges from 8MB to 2GB officially. While there are 4GB cards available as SD cards, they are technically SDHC cards.

The reason the POV.1 can only use the SD card, and cannot use the larger cards is because of the file system used by the POV.1. The file system used on SD cards and the POV.1 is FAT16, which has a maximum partition size of 2GB. While it is possible to work around this usually it is done via the computer, which already has more memory and processing power than the POV.1. We have been informed of some tricks that can be used to allow the POV.1 to use 4GB SDHC cards, but that has not been tested or approved. This “4GB work around” which is mentioned in the FAQ calls for the card to be formatted using the FAT16 file system and 64KB cluster sizes. While this will allow the POV.1 to use 4GB cards, V.I.O. does not currently support this workaround. Also not that the process for doing this so far only works on a Windows computer. (Sorry Mac users)

The new SDHC (Secure Digital High Capacity) allows for faster transfer speeds and larger capacities than the SD format. While both cards use the same physical card layout, the SDHC cards is formatted with a file system called FAT32. FAT32 allows for larger file sizes, up to 4GB, and physical disk sizes of up to 2TB (2,000GB). The SD Association’s SDHC guidelines currently limit the size of SDHC cards to 32GB for this generation.

Since the POV.1 uses a FAT16 file system it cannot “see” the larger sizes easily. We are working on improving the POV.1 via a firmware update, and we hope to expand the size limit to 8GB in the near future (by November). While in theory this switch to FAT 32 should allow for the POV.1 to use the 16GB cards, this has not yet been tested. Due to the size and other limits placed upon the POV.1 we cannot simply switch to FAT32 to unlock the larger file sizes. We originally thought we would need to change the hardware of the POV.1 in order to use the SDHC cards, but that problem has been solved and all POV.1 units should be able to upgrade to the upcoming firmware.

I hope this has been informative, and as always if you have any questions please feel free to call or e-mail us at anytime

Ian M

Customer Care Team

V.I.O. Inc.

Links:

http://en.wikipedia.org/wiki/Sd_card

http://www.sdcard.org/home

http://www.lexar.com/

http://www.sandisk.com/

http://community.vio-pov.com/customercare/2008/08/19/sd-cards-a-recommendation/

http://en.wikipedia.org/wiki/Fat16