Choices, like actions have consequences.
Some school bus camera system DVRs (Digital Video Recorders) store files on a Hard Drive, some on a SDXC card.
When you choose a memory storage device for the video camera system for your school bus fleet, you are making a choice that will forever effect the capacity and dependability of your system.

There is a direct tradeoff in Storage Capacity and Storage Dependability in the mobile school bus camera system market. This is due to the fact you must choose the memory storage device and the choices offer drastic differences.

For example: 
Would you rather have a full year of video files stored on your Hard Drive based DVR, or would you rather have 100% Solid State dependability in case something goes terribly wrong?

The choice is yours and yours alone, as “value” is subjective, meaning only you, the customer, can determine the best value to your district. Neither I nor any smooth talking commission sales persons suggestion or opinion of what your district needs is relevant, as neither I nor they determine the best value for your district, you do.
  
What follows is a brief overview of the pros and cons of both memory storage devices so that you can make an informed and educated choice as to what is the best value for your school district.