Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Durable, safe, quality SD card.

I have never had any problems with SanDisk and their solid state drives, namely their SD cards. However, I must say comparing it to the SD HC cards these cards are slow!! But, I don't think it is a fault of SanDisk rather a problem with all SD cards. It is unfortunate that there are still products out their that are not compatible with SD HC cards because having to be burdened by speed, rather lack of speed, of these SD cards can make one go crazy. Regardless, this card is definitely reliable and you won't lose your data which is a definite plus and they are easy to use as they are plug and play.