Packet 0x13/0xA7

The server sends clients a Packet 0x13 to send a portion of quest data to the client.

Packet 0xA7 is used similarly, but for GBA files on the Gamecube version of PSO or Downloadable quests in most versions.

Dreamcast Packet Format

BytesMeaning
0x0000Packet Type (0x13 or 0xA7)
0x0001Flags (Number of this chunk (0-based))
0x0002-0x0003Packet Size (0x0418)
0x0004-0x0013Name of the file being sent
0x0014-0x0413Chunk data (always 1024 bytes)
0x0414-0x0417Chunk size (1024 for most chunks, whatever is appropriate for the last chunk of each file)