V_SEG_SIZE sets the maximum size of a Vision file segment. Vision Version 5 allows for very large logical files by creating additional physical files (called file segments) as needed.

The default value is 2 GB - 1 KB -1 (which is 2,147,482,623 or hexadecimal 7FFFFBFF). The default is also the maximum value allowed. For best performance, set this value as high as possible, to minimize the number of files created.