The DVD specifications provide a set of machine commands which tell the DVD player how to play back the video and audio contents of the DVD. Each virtual machine (VM) command takes eight bytes of storage. Each byte is usually denoted by two hexadecimal digits. This page helps to convert a sequence of eight pairs of hexadecimal digits into the equivalent DVD VM command notation. The process is also known as VM command decoding. This is useful to interpret a sequence of VM commands in binary form where the source is no longer available. The decoding engine behind this web page will display appropriate error messages if an invalid sequence of bytes is encountered.

Enter DVD Virtual Command Code Bytes

Sonic Scenarist syntax

DVD Virtual Command Decoding

[00 00 00 00 00 00 00 00] Nop

Usage You can enter a sequence of eight bytes having up to 16 hexadecimal digits, optionally separated by spaces, commas(,), semicolons (;), or periods(.). If the entered sequence contains less than 16 digits, zeros are padded at the end to complete the 8-byte sequence. For example, enter 20 34 00 01 00 02 00 0A gives identical result as 2034 0001 0002 000A or 2034 0001;0002 000A, or 20.34.00.01 00.02.00.0A
Different authoring packages use different notations for DVD command syntax. The default choice is the official VM command syntax described in the DVD specifications used by Sonic Solutions Scenarist. DVD-Lab Pro and many other popular authoring packages use an alternate C-like syntax. Other script-like types are used in many freeware packages such as Ifoedit. You can choose one of these three types of syntax to reconstruct the VM command notation.

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