|  | @@ -25,13 +25,10 @@ namespace DvdLib.Ifo
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				|  |  |          public byte[] SubpictureStreamControl { get; private set; } // 32*4 entries
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				|  |  |          private ushort _nextProgramNumber;
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				|  |  | -        public readonly ProgramChain Next;
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				|  |  |  
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				|  |  |          private ushort _prevProgramNumber;
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				|  |  | -        public readonly ProgramChain Previous;
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				|  |  |          private ushort _goupProgramNumber;
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				|  |  | -        public readonly ProgramChain Goup; // ?? maybe Group
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				|  |  |          public ProgramPlaybackMode PlaybackMode { get; private set; }
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				|  |  |          public uint ProgramCount { get; private set; }
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				|  | @@ -40,7 +37,6 @@ namespace DvdLib.Ifo
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				|  |  |          public byte[] Palette { get; private set; } // 16*4 entries
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				|  |  |  
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				|  |  |          private ushort _commandTableOffset;
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				|  |  | -        public readonly ProgramChainCommandTable CommandTable;
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				|  |  |          private ushort _programMapOffset;
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				|  |  |          private ushort _cellPlaybackOffset;
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