Reasons for a variety of media sizes (right-click, Properties)

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ChrisGreaves
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Reasons for a variety of media sizes (right-click, Properties)

Post by ChrisGreaves »

Used
20230617_8GBA tangerine orange 8 GB memory key, formatted as NTFS on Saturday, June 17, 2023118 MB/7.33 GB
20230617_2GB A metallic crimson 2 GB memory key, formatted as FAT on Saturday, June 17, 202395.6 MB 1.75 GB
20230617_1GBA metallic pale blue 1 GB memory key, Veracrypted formatted as NTFS on Saturday, June 17, 2023104 MB/ 877 MB
20230617_64GBA white plastic 64 GB memory key, Veracrypted formatted as FAT on Saturday, June 17, 202389 MB / 57 GB
20230617_64GBA black plastic 64 GB memory key, Truecrypted formatted as NTFS on Saturday, June 17, 2023228 MB / 57.5 GB
White External label #1A 1TB Vercrypted exFat236MB/931MB
Green label500 GB Truecrypted 276MB/565Gb
CD-R disk (June 18 2023)CD disk113MB/589MB
DVD-RW disk (June 18 2023)
BETTYA blue SDCard from 10 years ago.96MB/1.8 GB
LK30 phone cardHolds audio books etc1.8 GB / 12.7 GB
I am accumulating a collection of Transient Media for trial. Transient media can be taken offline without the use of a screwdriver, and can be put online with the uses of the fingers of one hand.
The reasons for a variety of media sizes (right-click, Properties) are many, and I have thought of a few. I'd appreciate any other reasons you can contribute.

The last entry in the table is the micro-SDcard from my smart phone, encased in an adapter. It's use is abnormal because I have previously loaded audio books onto it.

In theory all the other media (Memory keys, USB drives, CD/DVD disks) are carrying copies of a single folder from my laptop "VoidTools_20230611_1747". Win11 reports (attached) this folder as 83 MB but occupying 233 MB on disk. I think this discrepancy is due to sector size, established at the time of formatting (with Veracrypt). Explicit compression techniques (e.g. PKZip) are not used in my exercise.
(1) Device format FAT/NTFS/exFAT etc.
(2) Sector size (set at time of formatting)
(3) Incidental compression (differences between non-encrypted, TrueCrypt, VeraCrypt formats)
(4) Overhead costs of the type of media (maybe SDcards have a lower overhead then USB drives? CDs vs. DVDs?

Thanks, Chris
If it isn't one thing it's another, and very often both. E.F.Benson