BrightSign 16GB SDHC Class 4 SDHC-16C4-1 Manuel D’Utilisation

Technical Notes – BrightSign SDHC Cards 
 

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BrightSign players are fully compatible with all SD cards. However, we 
recommend using 

  to improve the long-term 

reliability of looping-video presentations and reduce the chance of read 
errors.  

When you use a BrightSign player, your content and playlists are loaded onto an SD or 
SDHC flash card. Although all SD/SDHC cards rely on a standardized interface, there 
are large differences in performance and reliability among various card brands and 
models. Therefore, we strongly recommend that you use 

, which 

use an MLC flash chip and support wear leveling. BrightSign cards have been 
thoroughly tested and are proven to be long lasting and highly reliable.  

A typical BrightSign application often includes an “attract” video loop. If this video is 
fairly short, then a small number of flash blocks will be used repeatedly. Over time, the 
frequency with which these flash blocks are read may trigger “read fatigue errors” 
because the controller chips on certain SD/SDHC cards are not designed to correctly 
handle and eliminate them.  
 
The result is that some cards begin to fail after only 30,000 or 40,000 read cycles. If you 
have a video presentation that loops all day, every day, some cards may begin to fail a 
few months after purchase.