checked my games and this one is not included in the Dreamcast DAT's:
<description>ECW Hardcore REvolution</description>
<rom name="disc.gdi" size="149" crc="ee1ea516" md5="618195e19902fcd475ab5e823c7c1444" sha1="b291dde21d0cea2e5277e6f500f8557ec2882af5"/>
<rom name="track01.bin" size="1425312" crc="6aed83ea" md5="1cc284d701aa27544ef345b38a655607" sha1="8bf81d82fa08def66d060869239015567af0e1b9"/>
<rom name="track02.raw" size="1237152" crc="48fff429" md5="87af6d21a8b10aeffb90874118531e29" sha1="b0d28980a64765c022b4b3e47244aad32a345270"/>
<rom name="track03.bin" size="726775056" crc="478e2a6c" md5="1fef228f11f314fd9064d5d72b68aed5" sha1="f64c588bf4c29d15248b52e4c4c6e515b767c6b7"/>
<rom name="track04.raw" size="1060752" crc="a44276f4" md5="3a892db029c4b1ba6ed24ccdaf5cff62" sha1="36b69ee3a5dd70637228feaa14528ac23f848ee7"/>
<rom name="track05.bin" size="457219392" crc="9efc0517" md5="abd449315c5a7b36fdfc0971a283e4f3" sha1="3d39d0a843fe0e78b57aee2b80fc2e27718529ff"/>
i dumped it with my Broadband Adapter and with another Dreamcast and an SD-Card....always the same dump!