EXHIBIT 31.1

SECTION 302 CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER OF DTOMI, INC.

I, David M. Otto, certify that:

1. I have reviewed this quarterly report on Form 10-QSB of Dtomi, Inc.;

2. Based on my  knowledge,  this  quarterly  report  does not contain any untrue
statement of a material fact or omit to state a material fact  necessary to make
the statements made, in light of the  circumstances  under which such statements
were made, not  misleading  with respect to the period covered by this quarterly
report;

3.  Based  on my  knowledge,  the  financial  statements,  and  other  financial
information  included in this quarterly  report,  fairly present in all material
respects the financial  condition,  results of operations  and cash flows of the
registrant as of, and for, the periods presented in this quarterly report;

4.  The  registrant's  other  certifying  officers  and  I are  responsible  for
establishing and maintaining  disclosure  controls and procedures (as defined in
Exchange Act Rules 13a-14 and 15d-14) for the registrant and have:

a) designed  such  disclosure  controls and  procedures  to ensure that material
information relating to the registrant, including its consolidated subsidiaries,
is made known to us by others  within those  entities,  particularly  during the
period in which this quarterly report is being prepared;

b) evaluated  the  effectiveness  of the  registrant's  disclosure  controls and
procedures  as of a date  within  90  days  prior  to the  filing  date  of this
quarterly report (the "Evaluation Date"); and

c) presented in this quarterly report our conclusions about the effectiveness of
the  disclosure  controls  and  procedures  based  on our  evaluation  as of the
Evaluation Date;

5. The registrant's other certifying officers and I have disclosed, based on our
most recent evaluation,  to the registrant's auditors and the audit committee of
registrant's board of directors (or persons performing equivalent functions):

a) all significant  deficiencies in the design or operation of internal controls
which  could  adversely  affect the  registrant's  ability  to record,  process,
summarize and report  financial data and have  identified  for the  registrant's
auditors any material weaknesses in internal controls; and,

b) any  fraud,  whether  or not  material,  that  involves  management  or other
employees who have a significant  role in the  registrant's  internal  controls;
and,

6. The  registrant's  other  certifying  officers  and I have  indicated in this
quarterly report whether there were significant  changes in internal controls or
in other factors that could significantly affect internal controls subsequent to
the date of our most recent  evaluation,  including any corrective  actions with
regard to significant deficiencies and material weaknesses.

Date: August 17, 2005                            /s/ David M. Otto
                                                 ------------------------------
                                                 David M. Otto
                                                 Chairman, Secretary, principal
                                                 executive officer and principal
                                                 financial officer


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