Washington, D.C. 20549

                                    Form 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15 (d) of the
                         Securities Exchange Act of 1934


                Date of Report (Date of earliest event reported)
                                 October 25, 2004

                 RESIDENTIAL FUNDING MORTGAGE SECURITIES I, INC.

                               as depositor of the

                           RFMSI SERIES 2004-S8 TRUST
           (Exact name of the registrant as specified in its charter)


Delaware                         333-106093-14                   75-2006294
(State or other              (Commission File Number)        (I.R.S. Employee
jurisdiction of incorporation)                              Identification No.)


Residential Funding Mortgage Securities I, Inc.
8400 Normandale Lake Boulevard
Minneapolis, Minnesota                                           55437
(Address of Principal Executive Offices)                       (Zip Code)

Registrant's telephone number, including area code             (952) 857-7000


<PAGE>

                                       N/A
_______________________________________________________________________________
             (Former name or address, if changed since last report)

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communication  pursuant to Rule 425 under the Securities Act (17 CFR
230.425)

[ ] Soliciting  material  pursuant to Rule 14a-12 under the Exchange Act (17 CFR
240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
Act (17 CFR 240.13e-4(c))





<PAGE>

                    INFORMATION TO BE INCLUDED IN THE REPORT

Section 8 - Other Events

Item 8.01 - Other Events

A copy of the monthly  report  relating to the October  2004  distribution  to
holders of the Residential  Asset Securities  Corporation,  Home Equity Mortgage
Asset-Backed Pass-Through Certificates, Series 2004-S8 is included as an exhibit
to this Report.


Section 9 - Financial Statements

Item 9.01     Financial Statements, Pro Forma Financial Information and Exhibits

The following is filed as an Exhibit to this Report under Exhibit 20.

No. 20.           October 2004 Monthly Report


<PAGE>

                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.


RESIDENTIAL FUNDING MORTGAGE SECURITIES I, INC.,
as depositor of the registrant identified on the cover page to this Report


By:      /s / Barbara Wendt
Name:    Barbara Wendt
Title:   Managing Director
Dated:   October 25, 2004


<PAGE>
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{"company-data": {"conformed-name": "RFMSI Series 2004-S8 Trust", "cik": "0001304647", "assigned-sic": "6189", "irs-number": "000000000", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "333-106093-14", "film-number": "041096717"}, "business-address": {"street1": "8400 NORMANDALE LAKE BLVD", "street2": "SUITE 250", "city": "MINNEAPOLIS", "state": "MN", "zip": "55437", "phone": "9528327000"}, "mail-address": {"street1": "8400 NORMANDALE LAKE BLVD", "city": "MINNEAPOLIS", "state": "MN", "zip": "55437"}}
Washington, D.C. 20549

                                    Form 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15 (d) of the
                         Securities Exchange Act of 1934

                Date of Report (Date of earliest event reported)
                                 October 25, 2004

                 RESIDENTIAL FUNDING MORTGAGE SECURITIES I, INC.

                               as depositor of the

                           RFMSI SERIES 2004-S8 TRUST
           (Exact name of the registrant as specified in its charter)

Delaware                         333-106093-14                   75-2006294
(State or other              (Commission File Number)        (I.R.S. Employee
jurisdiction of incorporation)                              Identification No.)

Residential Funding Mortgage Securities I, Inc.
8400 Normandale Lake Boulevard
Minneapolis, Minnesota                                           55437
(Address of Principal Executive Offices)                       (Zip Code)

Registrant's telephone number, including area code             (952) 857-7000
N/A
_______________________________________________________________________________
             (Former name or address, if changed since last report)

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communication  pursuant to Rule 425 under the Securities Act (17 CFR
230.425)

[ ] Soliciting  material  pursuant to Rule 14a-12 under the Exchange Act (17 CFR
240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
Act (17 CFR 240.13e-4(c))
INFORMATION TO BE INCLUDED IN THE REPORT

Section 8 - Other Events

Item 8.01 - Other Events

A copy of the monthly  report  relating to the October  2004  distribution  to
holders of the Residential  Asset Securities  Corporation,  Home Equity Mortgage
Asset-Backed Pass-Through Certificates, Series 2004-S8 is included as an exhibit
to this Report.

Section 9 - Financial Statements

Item 9.01     Financial Statements, Pro Forma Financial Information and Exhibits

The following is filed as an Exhibit to this Report under Exhibit 20.

No. 20.           October 2004 Monthly Report
SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.

RESIDENTIAL FUNDING MORTGAGE SECURITIES I, INC.,
as depositor of the registrant identified on the cover page to this Report

By:      /s / Barbara Wendt
Name:    Barbara Wendt
Title:   Managing Director
Dated:   October 25, 2004