Please help with Playback rate 1/2 problem

[enjoialone]

i dunno exactly how to look for that, but this is what i found:

Default DirectSound Device
Location: C:\WINDOWS\system32\
quartz.dll, Size: 1293824 bytes, Version 6.5.2600.2180
CompanyName: Microsoft Corporation
FileDescription: Archivo de tiempo de ejecuci??n de DirectShow.
FileVersion: 6.05.2600.2180
InternalName: Quartz.dll
LegalCopyright: Copyright (C) 1992-2001 Microsoft Corp.
LegalTradeMarks: Copyright (C) 1992-2001 Microsoft Corp.
OriginalFilename: Quartz.dll
ProductName: DirectShow
ProductVersion: 6.05.2600.2180
Comments: 6.05.2600.2180


and this on MPEG AUDIO DECODER

MPEG Audio Decoder
Location: C:\WINDOWS\system32\
quartz.dll, Size: 1293824 bytes, Version 6.5.2600.2180
CompanyName: Microsoft Corporation
FileDescription: Archivo de tiempo de ejecuci??n de DirectShow.
FileVersion: 6.05.2600.2180
InternalName: Quartz.dll
LegalCopyright: Copyright (C) 1992-2001 Microsoft Corp.
LegalTradeMarks: Copyright (C) 1992-2001 Microsoft Corp.
OriginalFilename: Quartz.dll
ProductName: DirectShow
ProductVersion: 6.05.2600.2180
Comments: 6.05.2600.2180