[XPERIA X1 ROM Development] schizo:
For those searching for mirrors for these files, actually there are fast mirrors for almost all of them (on FTP sites). Took me a while to figure out, since they're mentioned in other thread:

http://xdaforums.com/showthread.php?t=477801 (see post #2 & #3)

Sorry if cross-posting, but I do hope this will be helpful for quick reference:

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V - STOCK ROMS (21 Dec 2008 latest release) NEW VERSION R2A​

AMERICA

- GENERIC WWEnglish NAM (NotrthAmerica) (1.03.948.8) R2AA008 - FTP download

NEW - GENERIC español LAM (LatinAmerica) (1.03.947.11) R2AA011 - FTP download

ASIA

- GENERIC chinese TW/HK (1.03.941.7) R2AA008 - Rapidshare download thanks to gsmcable

AUSTRIA

- GENERIC austrian AT (1.03.932.6) R2AA009 - FTP download

DENMARK

- GENERIC danish DK (1.03.944.8) R2AA008 - FTP download

FRANCE

- GENERIC française FR (1.03.933.8) R2AA008 - FTP download

GERMANY

- GENERIC deutsch DE (1.03.938.9) R2AA006 - FTP download

NETHERLANDS

- GENERIC dutch NL (1.03.937.6) R2AA006 - FTP download

- VODAFONE dutch NL (1.03.172.3) R2AA004 - FTP download

NORWAY

- GENERIC norwegian NO (1.03.945.8) R2AA008 - FTP download

PORTUGAL

- GENERIC portuguese PT (1.03.940.8) R2AA008 - FTP download

RUSSIA

- GENERIC Русский RU (1.03.942.7) R2AA007 - Depositfiles download thanks to Karlson2k

SPAIN

- GENERIC español ES (1.03.934.8) R2AA008 - FTP download

- Paquete SOLO ROM R2A ESPAÑOL + instrucciones en castellano descargar aqui gracias a laostia

SWEDEN

- GENERIC swedish SE (1.03.936.6) R2AA006 - FTP download

SWITZERLAND

- GENERIC switzerland CH (1.03.939.8) R2AA008 - FTP download

UK

- GENERIC WWEnglish UK/SG/IN/ZA/PL/CZ/HU (1.03.931.10) R2AA010 - FTP download

- GENERIC WWEnglish UK/SG/IN/ZA/PL/CZ/HU (1.03.931.8) R2AA008 - FTP download

- VODAFONE WWEnglish UK/GEL/AR (1.03.161.7) R2AA007 - FTP download

VI - PREVIOUS STOCK ROMS (Sep 2008 initial release) VERSION R1A​

AMERICA

- GENERIC english NAM - Rapidshare download thanks to n0b0die - FTP mirror

- GENERIC español LAM - FTP download thanks to fulgore69 - FTP mirror

ASIA

- GENERIC chinese TW - Download link thanks to Lindexter

- GENERIC simplified chinese CHS - Download link thanks to smallord

AUSTRIA

- GENERIC austrian AT - Uploaded download thanks to Ju76

- T-MOBILE TMO austrian AT - Rapidshare download thanks to wursta

FRANCE

- GENERIC française FR - FTP download thanks to ragnascroutch

- VODAFONE SFR française FR - Rapidshare download thanks to ludovic.audoin

GERMANY

- GENERIC deutsch DE - Rapidshare download thanks to phenx

- T-MOBILE TMO deutsch DE - Rapidshare download thanks to Slyker

- O2 deutsch DE - Direct download thanks to Fikachu

ITALY

- GENERIC italiano IT - FTP download thanks to ninja.rogue

NETHERLANDS

- GENERIC dutch NL - Direct download thanks to wbvreeuwijk - Rapidshare mirror thanks to nixx-X1

- VODAFONE dutch NL - Direct download thanks to wbvreeuwijk

- T-MOBILE TMO dutch NL - Rapidshare download thanks to jo3n

SPAIN

- GENERIC español SP - Megaupload download thanks to diablo2004

SWEDEN

- GENERIC swedish SE - FTP download thanks to Pulpie - Megaupload mirror thanks to raymccarthy

UNITED KINGDOM

- GENERIC WWEnglish UK/SG/IN/ZA/PL/CZ - FTP download thanks to wbvreeuwijk

- VODAFONE VFE english UK - FTP download thanks to fards

- O2 english UK - Rapidshare download thanks to grayme

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Cheers!