The Brainliest Answer!
Advantages of flash drive:
1. Portable.
2. Easy to carry.
3. More datas can be stored.

1. Cost is more compared to CD drive
2. It will not be applicable for old computers.

Differences between Blue ray and DVD:
-Blue ray is more costly compared to DVD
-More data can be stored in blue ray compared to DVD

2 4 2

This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Flash drive:
  1. It is a permanent memory
   2. It is an external secondary storage device.
  3. It is a plug and play type device.  There is no need to install.
  4. It has a very large memory capacity.
  5. It has very fast (small) access time to retrieve or to store data.
 Blue ray disc