Video over 4 GB won’t copy to the USB stick?

FAT32 can’t store files of 4 GB or more. CompressLab shrinks each file to just under 3.9 GB — or splits it into parts — so it fits any stick.

Your files stay on your device. Nothing is uploaded.

1 Your TV, box or projector

Not on the list? Paste the “supported formats” table from the manual

2 Your videos

3 USB stick, sound and subtitles

4 Save to the stick or a folder

Long batch? Leave the tab open and visible — the screen is kept awake. If the tab is closed, open the page again and press “Continue”: finished files are skipped.

Why “the file is too large for the destination file system”

Most USB sticks come formatted as FAT32, which limits a single file to 4 GiB (4,294,967,295 bytes). Reformatting to exFAT or NTFS removes the limit — but not every TV reads them: Hisense officially supports FAT32 and NTFS, many projectors and DVD players read FAT32 only, PS4/PS5 don’t read NTFS, older Fire TV Sticks don’t read NTFS.

Shrink or split?

Set “Stick format” to FAT32 (or “not sure”) and every output stays under 4 GB automatically.

Questions

Should I just format the stick as exFAT?

If your TV reads exFAT, yes — check its manual. If you are not sure, keeping files under 4 GB on FAT32 works everywhere.

Will splitting lose a few seconds?

Without re-encoding, a cut can only start at a key frame, so a part may begin a few seconds before the previous one ended. Nothing is lost.

Last updated: 2026-10-30

See also