Are there exception to this requirement?

Yes, special deposit requirements exist for many types of works. For example,

• If the work is an unpublished or published computer program, the deposit requirement is one visually perceptible copy in source code of the first 25 and last 25 pages of the program. For a program of fewer than 50 pages, the deposit is a copy of the entire program.

• If the work is in a CD-ROM format, the deposit requirement is one complete copy of the material, that is, the CD-ROM, the operating software, and any manual(s) accompanying it. If registration is sought for the computer program on the CD-ROM, the deposit should also include a printout of the first 25 and last 25 pages of source code for the program.