you could even embed the binary data of "entrance.dat" within the xml file using BASE64 encoding.
would look something like this:
would look something like this:
... <levels> <level name="Entrance" music="snd/mL1.ogg"> <data encoding="base64"> SGV5IHlvdVwncmUgYWJsZSB0byBk ZWNvZGUgYmFzZTY0ISB1bmJlbGlld mFibGUhIDspDQpIZXkgeW91XCdyZS BhYmxlIHRvIGRlY29kZSBiYXNlNjQhI HVuYmVsaWV2YWJsZSEgOykNCkhle SB5b3VcJ3JlIGFibGUgdG8gZGVjb2Rl IGJhc2U2NCEgdW5iZWxpZXZhYmxlI SA7KQ0KSGV5IHlvdVwncmUgYWJsZ SB0byBkZWNvZGUgYmFzZTY0ISB1b mJlbGlldmFibGUhIDspDQpIZXkgeW 91XCdyZSBhYmxlIHRvIGRlY29kZSBi YXNlNjQhIHVuYmVsaWV2YWJsZSEg OykNCkhleSB5b3VcJ3JlIGFibGUgdG 8gZGVjb2RlIGJhc2U2NCEgdW5iZWx pZXZhYmxlISA7KQ0KSGV5IHlvdVwn cmUgYWJsZSB0byBkZWNvZGUgYmF zZTY0ISB1bmJlbGlldmFibGUhIDspD QpIZXkgeW91XCdyZSBhYmxlIHRvIG RlY29kZSBiYXNlNjQhIHVuYmVsaWV 2YWJsZSEgOyk= </data> </level> </levels> ...