AnotherReplayReader/ReplayFile/ReplayChunk.cs

using System.IO;

namespace AnotherReplayReader.ReplayFile
{
    internal sealed class ReplayChunk
    {
        private readonly byte[] _data;

        public uint TimeCode { get; }
        public byte Type { get; }

        public ReplayChunk(uint timeCode, BinaryReader reader)
        {
            TimeCode = timeCode; // reader.ReadUInt32();
            Type = reader.ReadByte();
            var chunkSize = reader.ReadInt32();
            _data = reader.ReadBytes(chunkSize);
            if (reader.ReadInt32() != 0)
            {
                throw new InvalidDataException("Replay Chunk not ended with zero");
            }
        }

        public BinaryReader GetReader() => new(new MemoryStream(_data, false));

        public void WriteTo(BinaryWriter writer)
        {
            writer.Write(TimeCode);
            writer.Write(Type);
            writer.Write(_data.Length);
            writer.Write(_data);
            writer.Write(0);
        }
    }


}