T Multimedia Card Removable Devices
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# T Multimedia Card Removable Devices

## T.1 DICOM Mapping to Media Formats

Only one DICOM file set shall be stored in the first partition of a partitioned device. If the device is not partitioned, only one DICOM file set shall be stored on the device.

### T.1.1 File System

The file system employed on these media shall be the FAT16 file system. The cluster, sector, head, and related information obtained from the boot sector of this partition shall be utilized by the file system to determine proper access to this media (see Annex A).

File names shall be further restricted to be in compliance with the File ID rules specified in PS3.10. The File ID shall be the same as the filename.

### Note

1. These rules limit the character set to being a subset of the DICOM default G0 character set, limit the file names to be no more than 8 characters, and limit the directory tree to be no more than 8 levels deep. All of these restrictions are needed to comply with the most limited of the removable media. The selection of FAT16 reflects the actual usage of these newer media.

2. Some operating systems default their format command for larger capacity media to FAT32. FAT32 is not always compatible with FAT16 and should not be used.

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