Cannot Uncompress Some Floppy Disks Without Removing Data (104544)
The information in this article applies to:
- Microsoft MS-DOS operating system 6.2
- Microsoft MS-DOS operating system 6.22
This article was previously published under Q104544 SYMPTOMS
This information applies to both Microsoft DoubleSpace and Microsoft
DriveSpace. For MS-DOS 6.22, use DRVSPACE in place of DBLSPACE for commands
and filenames.
If you compress a floppy disk and immediately try to uncompress the
disk, you may receive the following error message:
DoubleSpace cannot uncompress drive <letter> because
there is not enough space on drive <host letter> to hold all
of the uncompressed files.
To uncompress drive <letter>, you must remove at least
<xxx,xxx> bytes of files from either drive.
CAUSE
This occurs because DoubleSpace is very conservative in estimating the
space required to hold the uncompressed files. The estimate is based
in part on a worst-case scenario in which the data on the floppy disk
is stored at a 16:1 compression ratio and DoubleSpace must convert the
drive from a 16-bit file allocation table (FAT) to a 12-bit FAT.
RESOLUTION
To work around this problem, remove <xxx,xxx> bytes of data from
either the compressed drive or the host drive.
| Modification Type: | Major | Last Reviewed: | 11/21/1999 |
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| Keywords: | KB104544 |
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