| File Type 1 |
Virtual CD (Most common) |
| File Format |
File |
| Common? |
No |
| File Description |
Disc image of a CD or DVD; recognized by Windows as an actual disc, even though the data is on the hard drive; allows CDs and DVDs to be used without requiring physical drives; useful for mounting discs on network computers. |
| Program(s) that open vcd files |
Windows: H+H Software Virtual CD; Roxio Creator |
| File Type 2 |
FarStone Virtual Drive |
| File Format |
File |
| Common? |
No |
| File Description |
Copy of a CD or unprotected DVD saved as a compressed image, or virtual disc; can be run in place of the original disc in any one of up to 23 virtual drives |
| Program(s) that open vcd files |
Windows: FarStone VirtualDrive; EZB Systems UltraISO |
| File Type 3 |
Value Change Dump File |
| File Format |
Standard File |
| Common? |
No |
| File Description |
Data dump generated by logic simulation programs and saved in a text format; contains header information, variable definitions, and value changes for specified variables; value changes are given in scalar or vector format, based on the type of variable. |
| Program(s) that open vcd files |
Windows: Altera Quartus II
Unix: GTKWave |
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