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Digital Video Disc: DVD

Digital video discs (DVDs) are similar to compact discs
(CDs), but they have a different format with a high
storage capacity ranging from 7.4 GB to 17 GB. Like CDs
and DVDs.

these discs also come in the form of

.DVD-R, DVD-ROM, DVD-RW

USB flash drive:

It is a digitally erasable and reprogrammable memory. It is
a removable and rewritable storage device that allows you to
copy, move, and erase data multiple times. Flash memory
drives are available in different storage capacities, and the
storage capacity generally ranges from 1 GB to 2 TB.

It is worth noting that there are many different versions of USB flash drive
USB that differ in the speed of data transfer and the power
that each type can reach, depending on the version of it.

USB 1.1 to USB 4.0.

•USB 1.1, data transfer rate up to 12 Mbit, was launched in 1998.

•USB 2.0, data transfer rate up to 480 Mbit, was launched in 2000.

•USB 3.0 data transfer rate up to 4 GB and was launched in 2008.

•USB 3.1, data transfer rate up to 10 GB, and was launched in 2015.

•USB 3.2, 20 GB data transfer rate, launched in 2018.

•USB 4.0 data transfer rate up to 40 GB and was launched in 2019.

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