Does Emacs have problems with files larger than 8 megabytes?
Old versions (i.e., anything before 19.29) of Emacs had problems editing files larger than 8 megabytes. In versions 19.29 and later, the maximum buffer size is at least 2^27-1, or 134,217,727 bytes, or 132 MBytes. And in Emacs 22, the maximum buffer size has been increased to 268,435,455 bytes (or 256 MBytes) on 32-bit machines. Emacs compiled on a 64-bit machine can handle much larger buffers.
