| File Type 1 |
Guide Text Definition File (Most common) |
| File Format |
File |
| Common? |
No |
| File Description |
Contains definitions of datasets used by a Guide, a star charting and desktop planetarium program; may be included on the application CD or saved on the hard disk during a program installation.
Text definition files can be modified in a text editor. |
| Program(s) that open tdf files |
Windows: Project Pluto Guide |
| File Type 2 |
Xserve Test Definition File |
| File Format |
Proprietary File |
| Common? |
No |
| File Description |
Stores test instructions and parameters for system tests run by Xserve Remote Diagnostics; used for testing the performance of components in an Apple Xserve server computer; can be edited in a text editor. |
| Program(s) that open tdf files |
Mac: Apple Xserve Remote Diagnostics |
| File Type 3 |
Title Definition Format File |
| File Format |
Proprietary File |
| Common? |
No |
| File Description |
Contains setup instructions for backing up DVD movies; used by DVD X software such as DVD-X Copy, DVD X Platinum, and DVD X Copy Express; may be used to modify and fix DVD authoring problems and incorrect titleset selections made by the DVD X software.
321 Studios has ceased operations for legal reasons. |
| Program(s) that open tdf files |
Windows: 321 Studios DVD X Copy software |
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